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Finding the Fourth Proportional to 69,381.80, 95,747.18 and 39,167.48

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Solution

The fourth proportional to 69,381.80, 95,747.18 and 39,167.48 is: 54,051.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,381.80 : 95,747.18 = 39,167.48 : x
  2. Step 2: Convert to fraction form
    69,381.80/95,747.18 = 39,167.48/x
  3. Step 3: Cross multiply
    69,381.80x = 95,747.18 × 39,167.48
  4. Step 4: Simplify right side
    69,381.80x = 3,750,175,757.71
  5. Step 5: Solve for x
    x = 3,750,175,757.71/69,381.80
  6. Step 6: Final answer
    x = 54,051.29

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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.