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Finding the Fourth Proportional to 62,432, 86,155.80 and 34,137.80

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Solution

The fourth proportional to 62,432, 86,155.80 and 34,137.80 is: 47,109.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,432 : 86,155.80 = 34,137.80 : x
  2. Step 2: Convert to fraction form
    62,432/86,155.80 = 34,137.80/x
  3. Step 3: Cross multiply
    62,432x = 86,155.80 × 34,137.80
  4. Step 4: Simplify right side
    62,432x = 2,941,169,469.24
  5. Step 5: Solve for x
    x = 2,941,169,469.24/62,432
  6. Step 6: Final answer
    x = 47,109.97

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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.