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Finding the Fourth Proportional to 43.89, 60.50 and 35.72

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Solution

The fourth proportional to 43.89, 60.50 and 35.72 is: 49.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    43.89 : 60.50 = 35.72 : x
  2. Step 2: Convert to fraction form
    43.89/60.50 = 35.72/x
  3. Step 3: Cross multiply
    43.89x = 60.50 × 35.72
  4. Step 4: Simplify right side
    43.89x = 2,160.58
  5. Step 5: Solve for x
    x = 2,160.58/43.89
  6. Step 6: Final answer
    x = 49.23

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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.