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Finding the Fourth Proportional to 80,520.74, 120,785.49 and 24,359.48

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Solution

The fourth proportional to 80,520.74, 120,785.49 and 24,359.48 is: 36,540.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,520.74 : 120,785.49 = 24,359.48 : x
  2. Step 2: Convert to fraction form
    80,520.74/120,785.49 = 24,359.48/x
  3. Step 3: Cross multiply
    80,520.74x = 120,785.49 × 24,359.48
  4. Step 4: Simplify right side
    80,520.74x = 2,942,271,124.02
  5. Step 5: Solve for x
    x = 2,942,271,124.02/80,520.74
  6. Step 6: Final answer
    x = 36,540.54

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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.