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Finding the Fourth Proportional to 69,878.38, 96,432.28 and 38,047.41

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Solution

The fourth proportional to 69,878.38, 96,432.28 and 38,047.41 is: 52,505.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,878.38 : 96,432.28 = 38,047.41 : x
  2. Step 2: Convert to fraction form
    69,878.38/96,432.28 = 38,047.41/x
  3. Step 3: Cross multiply
    69,878.38x = 96,432.28 × 38,047.41
  4. Step 4: Simplify right side
    69,878.38x = 3,668,998,494.39
  5. Step 5: Solve for x
    x = 3,668,998,494.39/69,878.38
  6. Step 6: Final answer
    x = 52,505.49

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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.