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Finding the Fourth Proportional to 49.20, 67.98 and 41.94

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Solution

The fourth proportional to 49.20, 67.98 and 41.94 is: 57.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    49.20 : 67.98 = 41.94 : x
  2. Step 2: Convert to fraction form
    49.20/67.98 = 41.94/x
  3. Step 3: Cross multiply
    49.20x = 67.98 × 41.94
  4. Step 4: Simplify right side
    49.20x = 2,851.08
  5. Step 5: Solve for x
    x = 2,851.08/49.20
  6. Step 6: Final answer
    x = 57.95

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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.