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Finding the Fourth Proportional to 44.44, 61.40 and 39.44

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Solution

The fourth proportional to 44.44, 61.40 and 39.44 is: 54.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    44.44 : 61.40 = 39.44 : x
  2. Step 2: Convert to fraction form
    44.44/61.40 = 39.44/x
  3. Step 3: Cross multiply
    44.44x = 61.40 × 39.44
  4. Step 4: Simplify right side
    44.44x = 2,421.62
  5. Step 5: Solve for x
    x = 2,421.62/44.44
  6. Step 6: Final answer
    x = 54.49

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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.