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Finding the Fourth Proportional to 49.44, 68.50 and 48.66

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Solution

The fourth proportional to 49.44, 68.50 and 48.66 is: 67.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    49.44 : 68.50 = 48.66 : x
  2. Step 2: Convert to fraction form
    49.44/68.50 = 48.66/x
  3. Step 3: Cross multiply
    49.44x = 68.50 × 48.66
  4. Step 4: Simplify right side
    49.44x = 3,333.21
  5. Step 5: Solve for x
    x = 3,333.21/49.44
  6. Step 6: Final answer
    x = 67.42

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.