Home / 81,791.56-112,861.38-45,974.44

Finding the Fourth Proportional to 81,791.56, 112,861.38 and 45,974.44

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Solution

The fourth proportional to 81,791.56, 112,861.38 and 45,974.44 is: 63,438.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,791.56 : 112,861.38 = 45,974.44 : x
  2. Step 2: Convert to fraction form
    81,791.56/112,861.38 = 45,974.44/x
  3. Step 3: Cross multiply
    81,791.56x = 112,861.38 × 45,974.44
  4. Step 4: Simplify right side
    81,791.56x = 5,188,738,743.13
  5. Step 5: Solve for x
    x = 5,188,738,743.13/81,791.56
  6. Step 6: Final answer
    x = 63,438.56

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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.