Home / 67,966.38-101,945.97-21,213.90

Finding the Fourth Proportional to 67,966.38, 101,945.97 and 21,213.90

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Solution

The fourth proportional to 67,966.38, 101,945.97 and 21,213.90 is: 31,819.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,966.38 : 101,945.97 = 21,213.90 : x
  2. Step 2: Convert to fraction form
    67,966.38/101,945.97 = 21,213.90/x
  3. Step 3: Cross multiply
    67,966.38x = 101,945.97 × 21,213.90
  4. Step 4: Simplify right side
    67,966.38x = 2,162,671,612.98
  5. Step 5: Solve for x
    x = 2,162,671,612.98/67,966.38
  6. Step 6: Final answer
    x = 31,819.73

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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.