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Finding the Fourth Proportional to 49.94, 68.86 and 33.56

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Solution

The fourth proportional to 49.94, 68.86 and 33.56 is: 46.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    49.94 : 68.86 = 33.56 : x
  2. Step 2: Convert to fraction form
    49.94/68.86 = 33.56/x
  3. Step 3: Cross multiply
    49.94x = 68.86 × 33.56
  4. Step 4: Simplify right side
    49.94x = 2,311.03
  5. Step 5: Solve for x
    x = 2,311.03/49.94
  6. Step 6: Final answer
    x = 46.28

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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.