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Finding the Fourth Proportional to 52.31, 77.96 and 50.06

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Solution

The fourth proportional to 52.31, 77.96 and 50.06 is: 74.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    52.31 : 77.96 = 50.06 : x
  2. Step 2: Convert to fraction form
    52.31/77.96 = 50.06/x
  3. Step 3: Cross multiply
    52.31x = 77.96 × 50.06
  4. Step 4: Simplify right side
    52.31x = 3,902.43
  5. Step 5: Solve for x
    x = 3,902.43/52.31
  6. Step 6: Final answer
    x = 74.60

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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.