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Finding the Fourth Proportional to 62.21, 93.17 and 39.34

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Solution

The fourth proportional to 62.21, 93.17 and 39.34 is: 58.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    62.21 : 93.17 = 39.34 : x
  2. Step 2: Convert to fraction form
    62.21/93.17 = 39.34/x
  3. Step 3: Cross multiply
    62.21x = 93.17 × 39.34
  4. Step 4: Simplify right side
    62.21x = 3,665.31
  5. Step 5: Solve for x
    x = 3,665.31/62.21
  6. Step 6: Final answer
    x = 58.92

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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.