Home / 87,834.54-131,445.36-71,854.86

Finding the Fourth Proportional to 87,834.54, 131,445.36 and 71,854.86

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Solution

The fourth proportional to 87,834.54, 131,445.36 and 71,854.86 is: 107,531.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,834.54 : 131,445.36 = 71,854.86 : x
  2. Step 2: Convert to fraction form
    87,834.54/131,445.36 = 71,854.86/x
  3. Step 3: Cross multiply
    87,834.54x = 131,445.36 × 71,854.86
  4. Step 4: Simplify right side
    87,834.54x = 9,444,987,940.45
  5. Step 5: Solve for x
    x = 9,444,987,940.45/87,834.54
  6. Step 6: Final answer
    x = 107,531.59

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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.