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Finding the Fourth Proportional to 50.44, 69.60 and 39.56

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Solution

The fourth proportional to 50.44, 69.60 and 39.56 is: 54.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    50.44 : 69.60 = 39.56 : x
  2. Step 2: Convert to fraction form
    50.44/69.60 = 39.56/x
  3. Step 3: Cross multiply
    50.44x = 69.60 × 39.56
  4. Step 4: Simplify right side
    50.44x = 2,753.38
  5. Step 5: Solve for x
    x = 2,753.38/50.44
  6. Step 6: Final answer
    x = 54.59

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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.