Finding the Fourth Proportional to 86,351.38, 129,531.68 and 27,191.66
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Solution
The fourth proportional to 86,351.38, 129,531.68 and 27,191.66 is: 40,788.95
Step by Step Solution
- Step 1: Write the proportion equation
86,351.38 : 129,531.68 = 27,191.66 : x - Step 2: Convert to fraction form
86,351.38/129,531.68 = 27,191.66/x - Step 3: Cross multiply
86,351.38x = 129,531.68 × 27,191.66 - Step 4: Simplify right side
86,351.38x = 3,522,181,707.39 - Step 5: Solve for x
x = 3,522,181,707.39/86,351.38 - Step 6: Final answer
x = 40,788.95
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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.