Finding the Fourth Proportional to 115,687.80, 173,531.70 and 32,581.80
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Solution
The fourth proportional to 115,687.80, 173,531.70 and 32,581.80 is: 48,872.70
Step by Step Solution
- Step 1: Write the proportion equation
115,687.80 : 173,531.70 = 32,581.80 : x - Step 2: Convert to fraction form
115,687.80/173,531.70 = 32,581.80/x - Step 3: Cross multiply
115,687.80x = 173,531.70 × 32,581.80 - Step 4: Simplify right side
115,687.80x = 5,653,975,143.06 - Step 5: Solve for x
x = 5,653,975,143.06/115,687.80 - Step 6: Final answer
x = 48,872.70
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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.