Finding the Fourth Proportional to 94,128.38, 129,808.13 and 61,805.99
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Solution
The fourth proportional to 94,128.38, 129,808.13 and 61,805.99 is: 85,233.80
Step by Step Solution
- Step 1: Write the proportion equation
94,128.38 : 129,808.13 = 61,805.99 : x - Step 2: Convert to fraction form
94,128.38/129,808.13 = 61,805.99/x - Step 3: Cross multiply
94,128.38x = 129,808.13 × 61,805.99 - Step 4: Simplify right side
94,128.38x = 8,022,919,490.17 - Step 5: Solve for x
x = 8,022,919,490.17/94,128.38 - Step 6: Final answer
x = 85,233.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.