Home / 44,789.92-67,140.30-21,389

Finding the Fourth Proportional to 44,789.92, 67,140.30 and 21,389

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Solution

The fourth proportional to 44,789.92, 67,140.30 and 21,389 is: 32,062.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,789.92 : 67,140.30 = 21,389 : x
  2. Step 2: Convert to fraction form
    44,789.92/67,140.30 = 21,389/x
  3. Step 3: Cross multiply
    44,789.92x = 67,140.30 × 21,389
  4. Step 4: Simplify right side
    44,789.92x = 1,436,063,876.70
  5. Step 5: Solve for x
    x = 1,436,063,876.70/44,789.92
  6. Step 6: Final answer
    x = 32,062.21

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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.