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Finding the Fourth Proportional to 49.85, 75.15 and 44.63

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Solution

The fourth proportional to 49.85, 75.15 and 44.63 is: 67.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    49.85 : 75.15 = 44.63 : x
  2. Step 2: Convert to fraction form
    49.85/75.15 = 44.63/x
  3. Step 3: Cross multiply
    49.85x = 75.15 × 44.63
  4. Step 4: Simplify right side
    49.85x = 3,353.72
  5. Step 5: Solve for x
    x = 3,353.72/49.85
  6. Step 6: Final answer
    x = 67.28

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.