Home / 80,738.92-111,433.06-47,198.44

Finding the Fourth Proportional to 80,738.92, 111,433.06 and 47,198.44

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Solution

The fourth proportional to 80,738.92, 111,433.06 and 47,198.44 is: 65,141.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,738.92 : 111,433.06 = 47,198.44 : x
  2. Step 2: Convert to fraction form
    80,738.92/111,433.06 = 47,198.44/x
  3. Step 3: Cross multiply
    80,738.92x = 111,433.06 × 47,198.44
  4. Step 4: Simplify right side
    80,738.92x = 5,259,466,596.43
  5. Step 5: Solve for x
    x = 5,259,466,596.43/80,738.92
  6. Step 6: Final answer
    x = 65,141.65

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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.