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Finding the Fourth Proportional to 44.98, 61.64 and 40.66

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Solution

The fourth proportional to 44.98, 61.64 and 40.66 is: 55.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    44.98 : 61.64 = 40.66 : x
  2. Step 2: Convert to fraction form
    44.98/61.64 = 40.66/x
  3. Step 3: Cross multiply
    44.98x = 61.64 × 40.66
  4. Step 4: Simplify right side
    44.98x = 2,506.28
  5. Step 5: Solve for x
    x = 2,506.28/44.98
  6. Step 6: Final answer
    x = 55.72

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.