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Finding the Fourth Proportional to 68,375.31, 102,540.79 and 22,770.87

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Solution

The fourth proportional to 68,375.31, 102,540.79 and 22,770.87 is: 34,148.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,375.31 : 102,540.79 = 22,770.87 : x
  2. Step 2: Convert to fraction form
    68,375.31/102,540.79 = 22,770.87/x
  3. Step 3: Cross multiply
    68,375.31x = 102,540.79 × 22,770.87
  4. Step 4: Simplify right side
    68,375.31x = 2,334,942,649.76
  5. Step 5: Solve for x
    x = 2,334,942,649.76/68,375.31
  6. Step 6: Final answer
    x = 34,148.91

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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.