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Finding the Fourth Proportional to 68,572.68, 102,765.60 and 41,928

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Solution

The fourth proportional to 68,572.68, 102,765.60 and 41,928 is: 62,834.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,572.68 : 102,765.60 = 41,928 : x
  2. Step 2: Convert to fraction form
    68,572.68/102,765.60 = 41,928/x
  3. Step 3: Cross multiply
    68,572.68x = 102,765.60 × 41,928
  4. Step 4: Simplify right side
    68,572.68x = 4,308,756,076.80
  5. Step 5: Solve for x
    x = 4,308,756,076.80/68,572.68
  6. Step 6: Final answer
    x = 62,834.88

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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.