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Finding the Fourth Proportional to 68,366.80, 102,550.20 and 38,773.20

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Solution

The fourth proportional to 68,366.80, 102,550.20 and 38,773.20 is: 58,159.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,366.80 : 102,550.20 = 38,773.20 : x
  2. Step 2: Convert to fraction form
    68,366.80/102,550.20 = 38,773.20/x
  3. Step 3: Cross multiply
    68,366.80x = 102,550.20 × 38,773.20
  4. Step 4: Simplify right side
    68,366.80x = 3,976,199,414.64
  5. Step 5: Solve for x
    x = 3,976,199,414.64/68,366.80
  6. Step 6: Final answer
    x = 58,159.80

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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.