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Finding the Fourth Proportional to 62.31, 93.99 and 61.62

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Solution

The fourth proportional to 62.31, 93.99 and 61.62 is: 92.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    62.31 : 93.99 = 61.62 : x
  2. Step 2: Convert to fraction form
    62.31/93.99 = 61.62/x
  3. Step 3: Cross multiply
    62.31x = 93.99 × 61.62
  4. Step 4: Simplify right side
    62.31x = 5,791.66
  5. Step 5: Solve for x
    x = 5,791.66/62.31
  6. Step 6: Final answer
    x = 92.95

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.