Home / 87,458-131,209.16-25,128.52

Finding the Fourth Proportional to 87,458, 131,209.16 and 25,128.52

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Solution

The fourth proportional to 87,458, 131,209.16 and 25,128.52 is: 37,699.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,458 : 131,209.16 = 25,128.52 : x
  2. Step 2: Convert to fraction form
    87,458/131,209.16 = 25,128.52/x
  3. Step 3: Cross multiply
    87,458x = 131,209.16 × 25,128.52
  4. Step 4: Simplify right side
    87,458x = 3,297,092,001.24
  5. Step 5: Solve for x
    x = 3,297,092,001.24/87,458
  6. Step 6: Final answer
    x = 37,699.15

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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.