document.write( "Question 1197150: The average of four numbers is 67. If three of these numbers are 56, 87, and 72, what is the fourth number? \n" ); document.write( "

Algebra.Com's Answer #830277 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi\r\n" );
document.write( "The average of four numbers is 67. \r\n" );
document.write( "If three of these numbers are 56, 87, and 72, \r\n" );
document.write( "what is the fourth number? Let x represent the 4th number\r\n" );
document.write( "Question States:\r\n" );
document.write( "(56 + 87 + 72 +x)/4 = 67\r\n" );
document.write( "   56 + 87 + 72 + x= 4*67\r\n" );
document.write( "                  x = 53\r\n" );
document.write( "Checking answer:\r\n" );
document.write( "(56 + 87 + 72 + 53)/4 = 67  checks.\r\n" );
document.write( "Wish You the Best in your Studies.\r\n" );
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