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Finding the Fourth Proportional to 62,474, 93,720.75 and 20,344.13

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Solution

The fourth proportional to 62,474, 93,720.75 and 20,344.13 is: 30,519.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,474 : 93,720.75 = 20,344.13 : x
  2. Step 2: Convert to fraction form
    62,474/93,720.75 = 20,344.13/x
  3. Step 3: Cross multiply
    62,474x = 93,720.75 × 20,344.13
  4. Step 4: Simplify right side
    62,474x = 1,906,667,121.70
  5. Step 5: Solve for x
    x = 1,906,667,121.70/62,474
  6. Step 6: Final answer
    x = 30,519.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.