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Finding the Fourth Proportional to 80,480.64, 120,633.42 and 33,678.84

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Solution

The fourth proportional to 80,480.64, 120,633.42 and 33,678.84 is: 50,481.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,480.64 : 120,633.42 = 33,678.84 : x
  2. Step 2: Convert to fraction form
    80,480.64/120,633.42 = 33,678.84/x
  3. Step 3: Cross multiply
    80,480.64x = 120,633.42 × 33,678.84
  4. Step 4: Simplify right side
    80,480.64x = 4,062,793,650.83
  5. Step 5: Solve for x
    x = 4,062,793,650.83/80,480.64
  6. Step 6: Final answer
    x = 50,481.63

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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.