Home / 87,458.20-131,188.08-25,128.68

Finding the Fourth Proportional to 87,458.20, 131,188.08 and 25,128.68

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Solution

The fourth proportional to 87,458.20, 131,188.08 and 25,128.68 is: 37,693.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,458.20 : 131,188.08 = 25,128.68 : x
  2. Step 2: Convert to fraction form
    87,458.20/131,188.08 = 25,128.68/x
  3. Step 3: Cross multiply
    87,458.20x = 131,188.08 × 25,128.68
  4. Step 4: Simplify right side
    87,458.20x = 3,296,583,282.13
  5. Step 5: Solve for x
    x = 3,296,583,282.13/87,458.20
  6. Step 6: Final answer
    x = 37,693.24

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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.