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Finding the Fourth Proportional to 80,410.89, 120,616.65 and 33,630.96

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Solution

The fourth proportional to 80,410.89, 120,616.65 and 33,630.96 is: 50,446.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,410.89 : 120,616.65 = 33,630.96 : x
  2. Step 2: Convert to fraction form
    80,410.89/120,616.65 = 33,630.96/x
  3. Step 3: Cross multiply
    80,410.89x = 120,616.65 × 33,630.96
  4. Step 4: Simplify right side
    80,410.89x = 4,056,453,731.48
  5. Step 5: Solve for x
    x = 4,056,453,731.48/80,410.89
  6. Step 6: Final answer
    x = 50,446.57

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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.