Finding the Fourth Proportional to 86,471.48, 129,746.63 and 44,381.12
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Solution
The fourth proportional to 86,471.48, 129,746.63 and 44,381.12 is: 66,591.90
Step by Step Solution
- Step 1: Write the proportion equation
86,471.48 : 129,746.63 = 44,381.12 : x - Step 2: Convert to fraction form
86,471.48/129,746.63 = 44,381.12/x - Step 3: Cross multiply
86,471.48x = 129,746.63 × 44,381.12 - Step 4: Simplify right side
86,471.48x = 5,758,300,377.91 - Step 5: Solve for x
x = 5,758,300,377.91/86,471.48 - Step 6: Final answer
x = 66,591.90
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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.