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Finding the Fourth Proportional to 68,793.72, 103,190.58 and 55,030.20

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Solution

The fourth proportional to 68,793.72, 103,190.58 and 55,030.20 is: 82,545.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,793.72 : 103,190.58 = 55,030.20 : x
  2. Step 2: Convert to fraction form
    68,793.72/103,190.58 = 55,030.20/x
  3. Step 3: Cross multiply
    68,793.72x = 103,190.58 × 55,030.20
  4. Step 4: Simplify right side
    68,793.72x = 5,678,598,255.52
  5. Step 5: Solve for x
    x = 5,678,598,255.52/68,793.72
  6. Step 6: Final answer
    x = 82,545.30

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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.