Home / 83,432.26-125,148.48-21,102.76

Finding the Fourth Proportional to 83,432.26, 125,148.48 and 21,102.76

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Solution

The fourth proportional to 83,432.26, 125,148.48 and 21,102.76 is: 31,654.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,432.26 : 125,148.48 = 21,102.76 : x
  2. Step 2: Convert to fraction form
    83,432.26/125,148.48 = 21,102.76/x
  3. Step 3: Cross multiply
    83,432.26x = 125,148.48 × 21,102.76
  4. Step 4: Simplify right side
    83,432.26x = 2,640,978,337.80
  5. Step 5: Solve for x
    x = 2,640,978,337.80/83,432.26
  6. Step 6: Final answer
    x = 31,654.16

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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.