Home / 80,251.38-120,332.04-54,979.44

Finding the Fourth Proportional to 80,251.38, 120,332.04 and 54,979.44

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Solution

The fourth proportional to 80,251.38, 120,332.04 and 54,979.44 is: 82,438.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,251.38 : 120,332.04 = 54,979.44 : x
  2. Step 2: Convert to fraction form
    80,251.38/120,332.04 = 54,979.44/x
  3. Step 3: Cross multiply
    80,251.38x = 120,332.04 × 54,979.44
  4. Step 4: Simplify right side
    80,251.38x = 6,615,788,173.26
  5. Step 5: Solve for x
    x = 6,615,788,173.26/80,251.38
  6. Step 6: Final answer
    x = 82,438.31

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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.