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Finding the Fourth Proportional to 49.39, 74.12 and 22.36

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Solution

The fourth proportional to 49.39, 74.12 and 22.36 is: 33.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    49.39 : 74.12 = 22.36 : x
  2. Step 2: Convert to fraction form
    49.39/74.12 = 22.36/x
  3. Step 3: Cross multiply
    49.39x = 74.12 × 22.36
  4. Step 4: Simplify right side
    49.39x = 1,657.32
  5. Step 5: Solve for x
    x = 1,657.32/49.39
  6. Step 6: Final answer
    x = 33.56

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