Finding the Fourth Proportional to 86,471.99, 129,747.38 and 44,381.62
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Solution
The fourth proportional to 86,471.99, 129,747.38 and 44,381.62 is: 66,592.65
Step by Step Solution
- Step 1: Write the proportion equation
86,471.99 : 129,747.38 = 44,381.62 : x - Step 2: Convert to fraction form
86,471.99/129,747.38 = 44,381.62/x - Step 3: Cross multiply
86,471.99x = 129,747.38 × 44,381.62 - Step 4: Simplify right side
86,471.99x = 5,758,398,915.16 - Step 5: Solve for x
x = 5,758,398,915.16/86,471.99 - Step 6: Final answer
x = 66,592.65
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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.