Home / 89,517.12-134,191.76-30,311.44

Finding the Fourth Proportional to 89,517.12, 134,191.76 and 30,311.44

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Solution

The fourth proportional to 89,517.12, 134,191.76 and 30,311.44 is: 45,438.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,517.12 : 134,191.76 = 30,311.44 : x
  2. Step 2: Convert to fraction form
    89,517.12/134,191.76 = 30,311.44/x
  3. Step 3: Cross multiply
    89,517.12x = 134,191.76 × 30,311.44
  4. Step 4: Simplify right side
    89,517.12x = 4,067,545,481.73
  5. Step 5: Solve for x
    x = 4,067,545,481.73/89,517.12
  6. Step 6: Final answer
    x = 45,438.74

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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.