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Finding the Fourth Proportional to 69,138.41, 95,411.07 and 38,923.97

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Solution

The fourth proportional to 69,138.41, 95,411.07 and 38,923.97 is: 53,715.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,138.41 : 95,411.07 = 38,923.97 : x
  2. Step 2: Convert to fraction form
    69,138.41/95,411.07 = 38,923.97/x
  3. Step 3: Cross multiply
    69,138.41x = 95,411.07 × 38,923.97
  4. Step 4: Simplify right side
    69,138.41x = 3,713,777,149.29
  5. Step 5: Solve for x
    x = 3,713,777,149.29/69,138.41
  6. Step 6: Final answer
    x = 53,715.11

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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.