document.write( "Question 1209929: The Pireras are planning to go to Europe 4 years from now and have agreed to set aside $180/month for their trip. If they deposit this money at the en each month into a savings account paying interest at the rate of 3%/year compounded monthly, how much money will be in their ‘travel fund at the end of the fourth year? (Round your answer to the nearest cent.) \n" ); document.write( "
Algebra.Com's Answer #851070 by CPhill(1959)![]() ![]() You can put this solution on YOUR website! Let's break down this problem step by step.\r \n" ); document.write( "\n" ); document.write( "**1. Understand the Problem**\r \n" ); document.write( "\n" ); document.write( "* This is a future value of an ordinary annuity problem. \n" ); document.write( "* The Pireras deposit $180 at the end of each month. \n" ); document.write( "* The interest rate is 3% per year, compounded monthly. \n" ); document.write( "* The time period is 4 years.\r \n" ); document.write( "\n" ); document.write( "**2. Identify the Variables**\r \n" ); document.write( "\n" ); document.write( "* Monthly payment (PMT) = $180 \n" ); document.write( "* Annual interest rate (r) = 3% = 0.03 \n" ); document.write( "* Monthly interest rate (i) = r / 12 = 0.03 / 12 = 0.0025 \n" ); document.write( "* Number of years (t) = 4 \n" ); document.write( "* Number of payments (n) = t * 12 = 4 * 12 = 48\r \n" ); document.write( "\n" ); document.write( "**3. Apply the Future Value of an Ordinary Annuity Formula**\r \n" ); document.write( "\n" ); document.write( "The formula is:\r \n" ); document.write( "\n" ); document.write( "FV = PMT * [((1 + i)^n - 1) / i]\r \n" ); document.write( "\n" ); document.write( "Where:\r \n" ); document.write( "\n" ); document.write( "* FV = Future Value \n" ); document.write( "* PMT = Monthly Payment \n" ); document.write( "* i = Monthly Interest Rate \n" ); document.write( "* n = Number of Payments\r \n" ); document.write( "\n" ); document.write( "**4. Calculate the Future Value**\r \n" ); document.write( "\n" ); document.write( "FV = 180 * [((1 + 0.0025)^48 - 1) / 0.0025] \n" ); document.write( "FV = 180 * [((1.0025)^48 - 1) / 0.0025]\r \n" ); document.write( "\n" ); document.write( "Let's calculate (1.0025)^48 first:\r \n" ); document.write( "\n" ); document.write( "(1.0025)^48 ≈ 1.1273383\r \n" ); document.write( "\n" ); document.write( "Now, plug that into the formula:\r \n" ); document.write( "\n" ); document.write( "FV = 180 * [(1.1273383 - 1) / 0.0025] \n" ); document.write( "FV = 180 * [0.1273383 / 0.0025] \n" ); document.write( "FV = 180 * 50.93532 \n" ); document.write( "FV ≈ 9168.3576\r \n" ); document.write( "\n" ); document.write( "**5. Round to the Nearest Cent**\r \n" ); document.write( "\n" ); document.write( "FV ≈ $9168.36\r \n" ); document.write( "\n" ); document.write( "**Answer:** The Pireras will have approximately $9168.36 in their travel fund at the end of the fourth year. \n" ); document.write( " \n" ); document.write( " |