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Finding the Fourth Proportional to 80,464.80, 120,711.60 and 33,722.40

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Solution

The fourth proportional to 80,464.80, 120,711.60 and 33,722.40 is: 50,589.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,464.80 : 120,711.60 = 33,722.40 : x
  2. Step 2: Convert to fraction form
    80,464.80/120,711.60 = 33,722.40/x
  3. Step 3: Cross multiply
    80,464.80x = 120,711.60 × 33,722.40
  4. Step 4: Simplify right side
    80,464.80x = 4,070,684,859.84
  5. Step 5: Solve for x
    x = 4,070,684,859.84/80,464.80
  6. Step 6: Final answer
    x = 50,589.63

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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.