Home / 69,939.52-96,517.68-38,109.76

Finding the Fourth Proportional to 69,939.52, 96,517.68 and 38,109.76

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Solution

The fourth proportional to 69,939.52, 96,517.68 and 38,109.76 is: 52,592.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,939.52 : 96,517.68 = 38,109.76 : x
  2. Step 2: Convert to fraction form
    69,939.52/96,517.68 = 38,109.76/x
  3. Step 3: Cross multiply
    69,939.52x = 96,517.68 × 38,109.76
  4. Step 4: Simplify right side
    69,939.52x = 3,678,265,620.56
  5. Step 5: Solve for x
    x = 3,678,265,620.56/69,939.52
  6. Step 6: Final answer
    x = 52,592.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.