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Finding the Fourth Proportional to 55.11, 76.10 and 44.25

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Solution

The fourth proportional to 55.11, 76.10 and 44.25 is: 61.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    55.11 : 76.10 = 44.25 : x
  2. Step 2: Convert to fraction form
    55.11/76.10 = 44.25/x
  3. Step 3: Cross multiply
    55.11x = 76.10 × 44.25
  4. Step 4: Simplify right side
    55.11x = 3,367.20
  5. Step 5: Solve for x
    x = 3,367.20/55.11
  6. Step 6: Final answer
    x = 61.10

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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.