Home / 67,201.38-100,789.11-25,638.66

Finding the Fourth Proportional to 67,201.38, 100,789.11 and 25,638.66

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Solution

The fourth proportional to 67,201.38, 100,789.11 and 25,638.66 is: 38,453.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,201.38 : 100,789.11 = 25,638.66 : x
  2. Step 2: Convert to fraction form
    67,201.38/100,789.11 = 25,638.66/x
  3. Step 3: Cross multiply
    67,201.38x = 100,789.11 × 25,638.66
  4. Step 4: Simplify right side
    67,201.38x = 2,584,097,722.99
  5. Step 5: Solve for x
    x = 2,584,097,722.99/67,201.38
  6. Step 6: Final answer
    x = 38,453.05

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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.