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Finding the Fourth Proportional to 49.98, 75.25 and 36.55

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Solution

The fourth proportional to 49.98, 75.25 and 36.55 is: 55.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    49.98 : 75.25 = 36.55 : x
  2. Step 2: Convert to fraction form
    49.98/75.25 = 36.55/x
  3. Step 3: Cross multiply
    49.98x = 75.25 × 36.55
  4. Step 4: Simplify right side
    49.98x = 2,750.11
  5. Step 5: Solve for x
    x = 2,750.11/49.98
  6. Step 6: Final answer
    x = 55.02

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.