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Finding the Fourth Proportional to 80,545.62, 111,101.90 and 49,487.27

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Solution

The fourth proportional to 80,545.62, 111,101.90 and 49,487.27 is: 68,261.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,545.62 : 111,101.90 = 49,487.27 : x
  2. Step 2: Convert to fraction form
    80,545.62/111,101.90 = 49,487.27/x
  3. Step 3: Cross multiply
    80,545.62x = 111,101.90 × 49,487.27
  4. Step 4: Simplify right side
    80,545.62x = 5,498,128,919.87
  5. Step 5: Solve for x
    x = 5,498,128,919.87/80,545.62
  6. Step 6: Final answer
    x = 68,261.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.