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Finding the Fourth Proportional to 80,552.82, 120,868.90 and 36,211.80

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Solution

The fourth proportional to 80,552.82, 120,868.90 and 36,211.80 is: 54,335.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,552.82 : 120,868.90 = 36,211.80 : x
  2. Step 2: Convert to fraction form
    80,552.82/120,868.90 = 36,211.80/x
  3. Step 3: Cross multiply
    80,552.82x = 120,868.90 × 36,211.80
  4. Step 4: Simplify right side
    80,552.82x = 4,376,880,433.02
  5. Step 5: Solve for x
    x = 4,376,880,433.02/80,552.82
  6. Step 6: Final answer
    x = 54,335.53

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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.