Home / 71,432.60-107,117.91-38,145.24

Finding the Fourth Proportional to 71,432.60, 107,117.91 and 38,145.24

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Solution

The fourth proportional to 71,432.60, 107,117.91 and 38,145.24 is: 57,201.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,432.60 : 107,117.91 = 38,145.24 : x
  2. Step 2: Convert to fraction form
    71,432.60/107,117.91 = 38,145.24/x
  3. Step 3: Cross multiply
    71,432.60x = 107,117.91 × 38,145.24
  4. Step 4: Simplify right side
    71,432.60x = 4,086,038,385.25
  5. Step 5: Solve for x
    x = 4,086,038,385.25/71,432.60
  6. Step 6: Final answer
    x = 57,201.32

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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.