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Finding the Fourth Proportional to 68,877.62, 103,309.12 and 22,126.84

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Solution

The fourth proportional to 68,877.62, 103,309.12 and 22,126.84 is: 33,187.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,877.62 : 103,309.12 = 22,126.84 : x
  2. Step 2: Convert to fraction form
    68,877.62/103,309.12 = 22,126.84/x
  3. Step 3: Cross multiply
    68,877.62x = 103,309.12 × 22,126.84
  4. Step 4: Simplify right side
    68,877.62x = 2,285,904,368.78
  5. Step 5: Solve for x
    x = 2,285,904,368.78/68,877.62
  6. Step 6: Final answer
    x = 33,187.91

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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.