Finding the Fourth Proportional to 89,809.20, 134,717.76 and 29,839.68
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Solution
The fourth proportional to 89,809.20, 134,717.76 and 29,839.68 is: 44,760.84
Step by Step Solution
- Step 1: Write the proportion equation
89,809.20 : 134,717.76 = 29,839.68 : x - Step 2: Convert to fraction form
89,809.20/134,717.76 = 29,839.68/x - Step 3: Cross multiply
89,809.20x = 134,717.76 × 29,839.68 - Step 4: Simplify right side
89,809.20x = 4,019,934,848.72 - Step 5: Solve for x
x = 4,019,934,848.72/89,809.20 - Step 6: Final answer
x = 44,760.84
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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.