Home / 87,630.10-131,531.55-43,306.90

Finding the Fourth Proportional to 87,630.10, 131,531.55 and 43,306.90

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Solution

The fourth proportional to 87,630.10, 131,531.55 and 43,306.90 is: 65,003.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,630.10 : 131,531.55 = 43,306.90 : x
  2. Step 2: Convert to fraction form
    87,630.10/131,531.55 = 43,306.90/x
  3. Step 3: Cross multiply
    87,630.10x = 131,531.55 × 43,306.90
  4. Step 4: Simplify right side
    87,630.10x = 5,696,223,682.70
  5. Step 5: Solve for x
    x = 5,696,223,682.70/87,630.10
  6. Step 6: Final answer
    x = 65,003.05

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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.