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Finding the Fourth Proportional to 68,793.22, 103,189.83 and 55,029.70

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Solution

The fourth proportional to 68,793.22, 103,189.83 and 55,029.70 is: 82,544.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,793.22 : 103,189.83 = 55,029.70 : x
  2. Step 2: Convert to fraction form
    68,793.22/103,189.83 = 55,029.70/x
  3. Step 3: Cross multiply
    68,793.22x = 103,189.83 × 55,029.70
  4. Step 4: Simplify right side
    68,793.22x = 5,678,505,387.95
  5. Step 5: Solve for x
    x = 5,678,505,387.95/68,793.22
  6. Step 6: Final answer
    x = 82,544.55

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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.