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Finding the Fourth Proportional to 73,489.62, 101,265.57 and 69,519.78

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Solution

The fourth proportional to 73,489.62, 101,265.57 and 69,519.78 is: 95,795.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,489.62 : 101,265.57 = 69,519.78 : x
  2. Step 2: Convert to fraction form
    73,489.62/101,265.57 = 69,519.78/x
  3. Step 3: Cross multiply
    73,489.62x = 101,265.57 × 69,519.78
  4. Step 4: Simplify right side
    73,489.62x = 7,039,960,147.97
  5. Step 5: Solve for x
    x = 7,039,960,147.97/73,489.62
  6. Step 6: Final answer
    x = 95,795.30

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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.