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Finding the Fourth Proportional to 49.34, 68.12 and 33.83

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Solution

The fourth proportional to 49.34, 68.12 and 33.83 is: 46.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    49.34 : 68.12 = 33.83 : x
  2. Step 2: Convert to fraction form
    49.34/68.12 = 33.83/x
  3. Step 3: Cross multiply
    49.34x = 68.12 × 33.83
  4. Step 4: Simplify right side
    49.34x = 2,304.50
  5. Step 5: Solve for x
    x = 2,304.50/49.34
  6. Step 6: Final answer
    x = 46.71

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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.