document.write( "Question 286379: A company wants to set up a sinking fund for the repayment of a loan of 100million at the end of four years.It makes equal deposits at the end of each month into a fund that earns interest at 22% per year compounded monthly. Determine the size of each deposit and construct a sinking fund schedule(the first three months only) \n" ); document.write( "
Algebra.Com's Answer #207697 by Theo(13342)![]() ![]() You can put this solution on YOUR website! Loan is $100 million to be repaid at the end of 4 years. \n" ); document.write( "Monthly deposits are made. \n" ); document.write( "Interest rate is 22% per year compounded monthly.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "This is a Payment for a Future Value type problem.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Using a financial calculator, you would enter:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Number of Time periods = 4 * 12 = 48 \n" ); document.write( "Interest Rate per Time Period = 22% / 100% = .22 / 12 = .0183333333 \n" ); document.write( "Future Amount = $100 million \n" ); document.write( "Payments are made at the end of each month. \n" ); document.write( "You are looking for the payment amount.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Your answer would be (using the financial calculator)\"\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Payment is $1,317,274.45 per month.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Sinking Fund Balance for the first 3 months would be:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "(1+i) = 1.0183333333 per month \n" ); document.write( "p = $1,317,274.45 per month\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "End of month 1 = $1,317,274.456 \n" ); document.write( "End of month 2 = $1,317,274.456 * (1+i) = $1,341,424.482 + p = $2,658,698.932 \n" ); document.write( "End of month 3 = $2,658,698.932 * (1+i) = $2,707,441.746 + p = $4,024,716.196 \n" ); document.write( "..... \n" ); document.write( "End of month 47 = $96,906,113.47 * (1+i) = $98,682,725.55 + p = $100,000,000.00\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "If you do not have a financial calculator, you can get an online version that will help you do the same problem.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "As a last resort, you can use the formula given in the following lesson on Payment for a Future Value.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "PAYMENT FOR A FUTURE VALUE\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The equation to use from that lesson is:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "PAYMENT FOR A FUTURE VALUE EQUATION\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "PMT = Payment per Time Period \n" ); document.write( "FV = Future Value \n" ); document.write( "i = Interest Rate per Time Period \n" ); document.write( "n = Number of Time Periods\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "FV = $100,000,000 \n" ); document.write( "i = .22 / 12 = .01833333333 \n" ); document.write( "n = 12*4 = 48\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Intermediate calculations would be:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "(1.01833333333)^48 - 1 = 1.391762614\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "Equation would become:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "PMT = 100,000,000 / (1.391762614/.01833333333) which would become:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "PMT = $1,317,274.45\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "An online financial calculator that will also calculate this for you can be found at the following link:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "http://www.arachnoid.com/lutusp/finance.html\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "You enter the information that you have and you click on the value you are looking for.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "For example:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "I entered values for:\r \n" ); document.write( "\n" ); document.write( "Future Value. \n" ); document.write( "Interest Rate per time period. \n" ); document.write( "Number of time periods. \n" ); document.write( "Present Value (I set it equal to 0).\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "I set the payment to be made at the end of the time period.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "I then clicked on the button for Payment.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "I got the same result that I gave you using both my own financial calculator plus solving the equation from the lesson.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "One last item.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "All equations used here assume re-investment of the interest earned each month.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "That re-investment is assumed to be at the same interest rate used for calculating the payment.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "I used Excel to calculate the money accruing in the sinking fund for every time period, not just the first 3.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The results are shown below:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \r\n" ); document.write( "Time Period \r\n" ); document.write( " Present Value of Loan \r\n" ); document.write( " Payment \r\n" ); document.write( " Interest Rate \r\n" ); document.write( " Sinking Fund Balance\r\n" ); document.write( "0 $41,810,169.363 0.018333333 $0.000\r\n" ); document.write( "1 1,317,274.450 $1,317,274.450\r\n" ); document.write( "2 1,317,274.450 $2,658,698.932\r\n" ); document.write( "3 1,317,274.450 $4,024,716.196\r\n" ); document.write( "4 1,317,274.450 $5,415,777.110\r\n" ); document.write( "5 1,317,274.450 $6,832,340.807\r\n" ); document.write( "6 1,317,274.450 $8,274,874.839\r\n" ); document.write( "7 1,317,274.450 $9,743,855.328\r\n" ); document.write( "8 1,317,274.450 $11,239,767.126\r\n" ); document.write( "9 1,317,274.450 $12,763,103.974\r\n" ); document.write( "10 1,317,274.450 $14,314,368.663\r\n" ); document.write( "11 1,317,274.450 $15,894,073.206\r\n" ); document.write( "12 1,317,274.450 $17,502,738.998\r\n" ); document.write( "13 1,317,274.450 $19,140,896.997\r\n" ); document.write( "14 1,317,274.450 $20,809,087.892\r\n" ); document.write( "15 1,317,274.450 $22,507,862.287\r\n" ); document.write( "16 1,317,274.450 $24,237,780.879\r\n" ); document.write( "17 1,317,274.450 $25,999,414.646\r\n" ); document.write( "18 1,317,274.450 $27,793,345.031\r\n" ); document.write( "19 1,317,274.450 $29,620,164.140\r\n" ); document.write( "20 1,317,274.450 $31,480,474.933\r\n" ); document.write( "21 1,317,274.450 $33,374,891.424\r\n" ); document.write( "22 1,317,274.450 $35,304,038.884\r\n" ); document.write( "23 1,317,274.450 $37,268,554.047\r\n" ); document.write( "24 1,317,274.450 $39,269,085.321\r\n" ); document.write( "25 1,317,274.450 $41,306,293.002\r\n" ); document.write( "26 1,317,274.450 $43,380,849.491\r\n" ); document.write( "27 1,317,274.450 $45,493,439.515\r\n" ); document.write( "28 1,317,274.450 $47,644,760.357\r\n" ); document.write( "29 1,317,274.450 $49,835,522.080\r\n" ); document.write( "30 1,317,274.450 $52,066,447.769\r\n" ); document.write( "31 1,317,274.450 $54,338,273.761\r\n" ); document.write( "32 1,317,274.450 $56,651,749.897\r\n" ); document.write( "33 1,317,274.450 $59,007,639.762\r\n" ); document.write( "34 1,317,274.450 $61,406,720.942\r\n" ); document.write( "35 1,317,274.450 $63,849,785.276\r\n" ); document.write( "36 1,317,274.450 $66,337,639.123\r\n" ); document.write( "37 1,317,274.450 $68,871,103.624\r\n" ); document.write( "38 1,317,274.450 $71,451,014.974\r\n" ); document.write( "39 1,317,274.450 $74,078,224.699\r\n" ); document.write( "40 1,317,274.450 $76,753,599.935\r\n" ); document.write( "41 1,317,274.450 $79,478,023.717\r\n" ); document.write( "42 1,317,274.450 $82,252,395.269\r\n" ); document.write( "43 1,317,274.450 $85,077,630.299\r\n" ); document.write( "44 1,317,274.450 $87,954,661.305\r\n" ); document.write( "45 1,317,274.450 $90,884,437.879\r\n" ); document.write( "46 1,317,274.450 $93,867,927.024\r\n" ); document.write( "47 1,317,274.450 $96,906,113.470\r\n" ); document.write( "48 1,317,274.450 $100,000,000.000\r\n" ); document.write( "\n" ); document.write( " |