Home / 87,645.20-131,467.80-50,781.20

Finding the Fourth Proportional to 87,645.20, 131,467.80 and 50,781.20

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Solution

The fourth proportional to 87,645.20, 131,467.80 and 50,781.20 is: 76,171.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,645.20 : 131,467.80 = 50,781.20 : x
  2. Step 2: Convert to fraction form
    87,645.20/131,467.80 = 50,781.20/x
  3. Step 3: Cross multiply
    87,645.20x = 131,467.80 × 50,781.20
  4. Step 4: Simplify right side
    87,645.20x = 6,676,092,645.36
  5. Step 5: Solve for x
    x = 6,676,092,645.36/87,645.20
  6. Step 6: Final answer
    x = 76,171.80

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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.