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Finding the Fourth Proportional to 68,801.76, 103,202.73 and 18,882.54

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Solution

The fourth proportional to 68,801.76, 103,202.73 and 18,882.54 is: 28,323.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,801.76 : 103,202.73 = 18,882.54 : x
  2. Step 2: Convert to fraction form
    68,801.76/103,202.73 = 18,882.54/x
  3. Step 3: Cross multiply
    68,801.76x = 103,202.73 × 18,882.54
  4. Step 4: Simplify right side
    68,801.76x = 1,948,729,677.33
  5. Step 5: Solve for x
    x = 1,948,729,677.33/68,801.76
  6. Step 6: Final answer
    x = 28,323.83

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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.