Home / 80,827.32-111,540.12-55,333.04

Finding the Fourth Proportional to 80,827.32, 111,540.12 and 55,333.04

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Solution

The fourth proportional to 80,827.32, 111,540.12 and 55,333.04 is: 76,358.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,827.32 : 111,540.12 = 55,333.04 : x
  2. Step 2: Convert to fraction form
    80,827.32/111,540.12 = 55,333.04/x
  3. Step 3: Cross multiply
    80,827.32x = 111,540.12 × 55,333.04
  4. Step 4: Simplify right side
    80,827.32x = 6,171,853,921.56
  5. Step 5: Solve for x
    x = 6,171,853,921.56/80,827.32
  6. Step 6: Final answer
    x = 76,358.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.