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Finding the Fourth Proportional to 69,377.11, 103,997.22 and 27,230.79

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Solution

The fourth proportional to 69,377.11, 103,997.22 and 27,230.79 is: 40,819.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,377.11 : 103,997.22 = 27,230.79 : x
  2. Step 2: Convert to fraction form
    69,377.11/103,997.22 = 27,230.79/x
  3. Step 3: Cross multiply
    69,377.11x = 103,997.22 × 27,230.79
  4. Step 4: Simplify right side
    69,377.11x = 2,831,926,458.40
  5. Step 5: Solve for x
    x = 2,831,926,458.40/69,377.11
  6. Step 6: Final answer
    x = 40,819.32

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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.