Home / 87,919.26-131,865.45-28,755.42

Finding the Fourth Proportional to 87,919.26, 131,865.45 and 28,755.42

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Solution

The fourth proportional to 87,919.26, 131,865.45 and 28,755.42 is: 43,128.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,919.26 : 131,865.45 = 28,755.42 : x
  2. Step 2: Convert to fraction form
    87,919.26/131,865.45 = 28,755.42/x
  3. Step 3: Cross multiply
    87,919.26x = 131,865.45 × 28,755.42
  4. Step 4: Simplify right side
    87,919.26x = 3,791,846,398.24
  5. Step 5: Solve for x
    x = 3,791,846,398.24/87,919.26
  6. Step 6: Final answer
    x = 43,128.73

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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.