Home / 87,724.50-131,600.42-28,546.20

Finding the Fourth Proportional to 87,724.50, 131,600.42 and 28,546.20

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Solution

The fourth proportional to 87,724.50, 131,600.42 and 28,546.20 is: 42,823.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,724.50 : 131,600.42 = 28,546.20 : x
  2. Step 2: Convert to fraction form
    87,724.50/131,600.42 = 28,546.20/x
  3. Step 3: Cross multiply
    87,724.50x = 131,600.42 × 28,546.20
  4. Step 4: Simplify right side
    87,724.50x = 3,756,691,766.67
  5. Step 5: Solve for x
    x = 3,756,691,766.67/87,724.50
  6. Step 6: Final answer
    x = 42,823.75

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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.