Home / 80,689.08-111,375.18-52,398.84

Finding the Fourth Proportional to 80,689.08, 111,375.18 and 52,398.84

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Solution

The fourth proportional to 80,689.08, 111,375.18 and 52,398.84 is: 72,326.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,689.08 : 111,375.18 = 52,398.84 : x
  2. Step 2: Convert to fraction form
    80,689.08/111,375.18 = 52,398.84/x
  3. Step 3: Cross multiply
    80,689.08x = 111,375.18 × 52,398.84
  4. Step 4: Simplify right side
    80,689.08x = 5,835,930,236.79
  5. Step 5: Solve for x
    x = 5,835,930,236.79/80,689.08
  6. Step 6: Final answer
    x = 72,326.15

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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.