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Finding the Fourth Proportional to 80,330.95, 120,447.78 and 35,949.43

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Solution

The fourth proportional to 80,330.95, 120,447.78 and 35,949.43 is: 53,902.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,330.95 : 120,447.78 = 35,949.43 : x
  2. Step 2: Convert to fraction form
    80,330.95/120,447.78 = 35,949.43/x
  3. Step 3: Cross multiply
    80,330.95x = 120,447.78 × 35,949.43
  4. Step 4: Simplify right side
    80,330.95x = 4,330,029,035.77
  5. Step 5: Solve for x
    x = 4,330,029,035.77/80,330.95
  6. Step 6: Final answer
    x = 53,902.38

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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.