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Finding the Fourth Proportional to 50.50, 76.02 and 43.88

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Solution

The fourth proportional to 50.50, 76.02 and 43.88 is: 66.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    50.50 : 76.02 = 43.88 : x
  2. Step 2: Convert to fraction form
    50.50/76.02 = 43.88/x
  3. Step 3: Cross multiply
    50.50x = 76.02 × 43.88
  4. Step 4: Simplify right side
    50.50x = 3,335.76
  5. Step 5: Solve for x
    x = 3,335.76/50.50
  6. Step 6: Final answer
    x = 66.05

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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.