Finding the Fourth Proportional to 77,717.31, 116,576.01 and 31,002.99
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Solution
The fourth proportional to 77,717.31, 116,576.01 and 31,002.99 is: 46,504.50
Step by Step Solution
- Step 1: Write the proportion equation
77,717.31 : 116,576.01 = 31,002.99 : x - Step 2: Convert to fraction form
77,717.31/116,576.01 = 31,002.99/x - Step 3: Cross multiply
77,717.31x = 116,576.01 × 31,002.99 - Step 4: Simplify right side
77,717.31x = 3,614,204,872.27 - Step 5: Solve for x
x = 3,614,204,872.27/77,717.31 - Step 6: Final answer
x = 46,504.50
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Double scale
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Similar ratio
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.