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Finding the Fourth Proportional to 49.17, 73.74 and 25.11

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Solution

The fourth proportional to 49.17, 73.74 and 25.11 is: 37.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    49.17 : 73.74 = 25.11 : x
  2. Step 2: Convert to fraction form
    49.17/73.74 = 25.11/x
  3. Step 3: Cross multiply
    49.17x = 73.74 × 25.11
  4. Step 4: Simplify right side
    49.17x = 1,851.61
  5. Step 5: Solve for x
    x = 1,851.61/49.17
  6. Step 6: Final answer
    x = 37.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.