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Finding the Fourth Proportional to 92.97, 139.55 and 44.91

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Solution

The fourth proportional to 92.97, 139.55 and 44.91 is: 67.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    92.97 : 139.55 = 44.91 : x
  2. Step 2: Convert to fraction form
    92.97/139.55 = 44.91/x
  3. Step 3: Cross multiply
    92.97x = 139.55 × 44.91
  4. Step 4: Simplify right side
    92.97x = 6,267.54
  5. Step 5: Solve for x
    x = 6,267.54/92.97
  6. Step 6: Final answer
    x = 67.41

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Why These Related Problems?

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