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Finding the Fourth Proportional to 50.98, 76.60 and 44.70

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Solution

The fourth proportional to 50.98, 76.60 and 44.70 is: 67.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    50.98 : 76.60 = 44.70 : x
  2. Step 2: Convert to fraction form
    50.98/76.60 = 44.70/x
  3. Step 3: Cross multiply
    50.98x = 76.60 × 44.70
  4. Step 4: Simplify right side
    50.98x = 3,424.02
  5. Step 5: Solve for x
    x = 3,424.02/50.98
  6. Step 6: Final answer
    x = 67.16

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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.