document.write( "Question 994660: The average of four numbers is 67 three of these numbers are 67 87 72 what is the fourth number \n" ); document.write( "
Algebra.Com's Answer #613678 by stanbon(75887)\"\" \"About 
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The average of four numbers is 67 three of these numbers are 67 87 72 what is the fourth number
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\n" ); document.write( "Let the 4th number be \"x\".
\n" ); document.write( "Equation:
\n" ); document.write( "(67+87+72+x)/4 = 67
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\n" ); document.write( "x + 226 = 268
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\n" ); document.write( "x = 42
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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