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Finding the Fourth Proportional to 52.30, 77.76 and 50.95

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Solution

The fourth proportional to 52.30, 77.76 and 50.95 is: 75.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    52.30 : 77.76 = 50.95 : x
  2. Step 2: Convert to fraction form
    52.30/77.76 = 50.95/x
  3. Step 3: Cross multiply
    52.30x = 77.76 × 50.95
  4. Step 4: Simplify right side
    52.30x = 3,961.87
  5. Step 5: Solve for x
    x = 3,961.87/52.30
  6. Step 6: Final answer
    x = 75.75

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.