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Finding the Fourth Proportional to 50.46, 69.17 and 49.54

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Solution

The fourth proportional to 50.46, 69.17 and 49.54 is: 67.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    50.46 : 69.17 = 49.54 : x
  2. Step 2: Convert to fraction form
    50.46/69.17 = 49.54/x
  3. Step 3: Cross multiply
    50.46x = 69.17 × 49.54
  4. Step 4: Simplify right side
    50.46x = 3,426.81
  5. Step 5: Solve for x
    x = 3,426.81/50.46
  6. Step 6: Final answer
    x = 67.91

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.