Finding the Fourth Proportional to 91,024.32, 136,478.16 and 44,251.68
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Solution
The fourth proportional to 91,024.32, 136,478.16 and 44,251.68 is: 66,349.17
Step by Step Solution
- Step 1: Write the proportion equation
91,024.32 : 136,478.16 = 44,251.68 : x - Step 2: Convert to fraction form
91,024.32/136,478.16 = 44,251.68/x - Step 3: Cross multiply
91,024.32x = 136,478.16 × 44,251.68 - Step 4: Simplify right side
91,024.32x = 6,039,387,863.31 - Step 5: Solve for x
x = 6,039,387,863.31/91,024.32 - Step 6: Final answer
x = 66,349.17
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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.