Finding the Fourth Proportional to 75,515.88, 113,311.88 and 53,470.92
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Solution
The fourth proportional to 75,515.88, 113,311.88 and 53,470.92 is: 80,233.33
Step by Step Solution
- Step 1: Write the proportion equation
75,515.88 : 113,311.88 = 53,470.92 : x - Step 2: Convert to fraction form
75,515.88/113,311.88 = 53,470.92/x - Step 3: Cross multiply
75,515.88x = 113,311.88 × 53,470.92 - Step 4: Simplify right side
75,515.88x = 6,058,890,470.53 - Step 5: Solve for x
x = 6,058,890,470.53/75,515.88 - Step 6: Final answer
x = 80,233.33
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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.