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Finding the Fourth Proportional to 52.32, 71.79 and 49.62

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Solution

The fourth proportional to 52.32, 71.79 and 49.62 is: 68.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    52.32 : 71.79 = 49.62 : x
  2. Step 2: Convert to fraction form
    52.32/71.79 = 49.62/x
  3. Step 3: Cross multiply
    52.32x = 71.79 × 49.62
  4. Step 4: Simplify right side
    52.32x = 3,562.22
  5. Step 5: Solve for x
    x = 3,562.22/52.32
  6. Step 6: Final answer
    x = 68.09

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.