Finding the Fourth Proportional to 86,487.64, 129,691.14 and 44,923.48
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Solution
The fourth proportional to 86,487.64, 129,691.14 and 44,923.48 is: 67,364.28
Step by Step Solution
- Step 1: Write the proportion equation
86,487.64 : 129,691.14 = 44,923.48 : x - Step 2: Convert to fraction form
86,487.64/129,691.14 = 44,923.48/x - Step 3: Cross multiply
86,487.64x = 129,691.14 × 44,923.48 - Step 4: Simplify right side
86,487.64x = 5,826,177,333.97 - Step 5: Solve for x
x = 5,826,177,333.97/86,487.64 - Step 6: Final answer
x = 67,364.28
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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.