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Finding the Fourth Proportional to 80,002.80, 119,908.20 and 33,231.60

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Solution

The fourth proportional to 80,002.80, 119,908.20 and 33,231.60 is: 49,807.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,002.80 : 119,908.20 = 33,231.60 : x
  2. Step 2: Convert to fraction form
    80,002.80/119,908.20 = 33,231.60/x
  3. Step 3: Cross multiply
    80,002.80x = 119,908.20 × 33,231.60
  4. Step 4: Simplify right side
    80,002.80x = 3,984,741,339.12
  5. Step 5: Solve for x
    x = 3,984,741,339.12/80,002.80
  6. Step 6: Final answer
    x = 49,807.52

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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.