Finding the Fourth Proportional to 115,680.20, 173,540.87 and 40,843.79
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Solution
The fourth proportional to 115,680.20, 173,540.87 and 40,843.79 is: 61,272.95
Step by Step Solution
- Step 1: Write the proportion equation
115,680.20 : 173,540.87 = 40,843.79 : x - Step 2: Convert to fraction form
115,680.20/173,540.87 = 40,843.79/x - Step 3: Cross multiply
115,680.20x = 173,540.87 × 40,843.79 - Step 4: Simplify right side
115,680.20x = 7,088,066,850.70 - Step 5: Solve for x
x = 7,088,066,850.70/115,680.20 - Step 6: Final answer
x = 61,272.95
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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.