Home / 95,081.20-131,072.28-72,380.62

Finding the Fourth Proportional to 95,081.20, 131,072.28 and 72,380.62

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Solution

The fourth proportional to 95,081.20, 131,072.28 and 72,380.62 is: 99,778.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,081.20 : 131,072.28 = 72,380.62 : x
  2. Step 2: Convert to fraction form
    95,081.20/131,072.28 = 72,380.62/x
  3. Step 3: Cross multiply
    95,081.20x = 131,072.28 × 72,380.62
  4. Step 4: Simplify right side
    95,081.20x = 9,487,092,891.21
  5. Step 5: Solve for x
    x = 9,487,092,891.21/95,081.20
  6. Step 6: Final answer
    x = 99,778.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.