Finding the Fourth Proportional to 87,541.13, 131,311.70 and 21,877.13
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Solution
The fourth proportional to 87,541.13, 131,311.70 and 21,877.13 is: 32,815.70
Step by Step Solution
- Step 1: Write the proportion equation
87,541.13 : 131,311.70 = 21,877.13 : x - Step 2: Convert to fraction form
87,541.13/131,311.70 = 21,877.13/x - Step 3: Cross multiply
87,541.13x = 131,311.70 × 21,877.13 - Step 4: Simplify right side
87,541.13x = 2,872,723,131.42 - Step 5: Solve for x
x = 2,872,723,131.42/87,541.13 - Step 6: Final answer
x = 32,815.70
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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.