SOLUTION: The average of four numbers is 67 three of these numbers are 67 87 72 what is the fourth number

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Question 994660: The average of four numbers is 67 three of these numbers are 67 87 72 what is the fourth number
Found 2 solutions by stanbon, macston:
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
The average of four numbers is 67 three of these numbers are 67 87 72 what is the fourth number
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Let the 4th number be "x".
Equation:
(67+87+72+x)/4 = 67
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x + 226 = 268
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x = 42
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Cheers,
Stan H.
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Answer by macston(5194) About Me  (Show Source):
You can put this solution on YOUR website!
.
A=average; F=fourth number
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A=(sum of numbers)/(how many numbers)
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67=(67+87+72+F)/4
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268=226+F
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42=F
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ANSWER: The fourth number is 42.