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Finding the Fourth Proportional to 54.11, 74.67 and 32.28

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Solution

The fourth proportional to 54.11, 74.67 and 32.28 is: 44.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    54.11 : 74.67 = 32.28 : x
  2. Step 2: Convert to fraction form
    54.11/74.67 = 32.28/x
  3. Step 3: Cross multiply
    54.11x = 74.67 × 32.28
  4. Step 4: Simplify right side
    54.11x = 2,410.35
  5. Step 5: Solve for x
    x = 2,410.35/54.11
  6. Step 6: Final answer
    x = 44.55

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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.