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Finding the Fourth Proportional to 80,545.44, 120,793.50 and 38,403.30

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Solution

The fourth proportional to 80,545.44, 120,793.50 and 38,403.30 is: 57,593.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,545.44 : 120,793.50 = 38,403.30 : x
  2. Step 2: Convert to fraction form
    80,545.44/120,793.50 = 38,403.30/x
  3. Step 3: Cross multiply
    80,545.44x = 120,793.50 × 38,403.30
  4. Step 4: Simplify right side
    80,545.44x = 4,638,869,018.55
  5. Step 5: Solve for x
    x = 4,638,869,018.55/80,545.44
  6. Step 6: Final answer
    x = 57,593.19

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1.5x scale

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.