Home / 80,557.10-111,163.38-48,743.54

Finding the Fourth Proportional to 80,557.10, 111,163.38 and 48,743.54

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Solution

The fourth proportional to 80,557.10, 111,163.38 and 48,743.54 is: 67,262.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,557.10 : 111,163.38 = 48,743.54 : x
  2. Step 2: Convert to fraction form
    80,557.10/111,163.38 = 48,743.54/x
  3. Step 3: Cross multiply
    80,557.10x = 111,163.38 × 48,743.54
  4. Step 4: Simplify right side
    80,557.10x = 5,418,496,659.57
  5. Step 5: Solve for x
    x = 5,418,496,659.57/80,557.10
  6. Step 6: Final answer
    x = 67,262.81

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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.