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Finding the Fourth Proportional to 62.11, 93.82 and 61.61

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Solution

The fourth proportional to 62.11, 93.82 and 61.61 is: 93.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    62.11 : 93.82 = 61.61 : x
  2. Step 2: Convert to fraction form
    62.11/93.82 = 61.61/x
  3. Step 3: Cross multiply
    62.11x = 93.82 × 61.61
  4. Step 4: Simplify right side
    62.11x = 5,779.94
  5. Step 5: Solve for x
    x = 5,779.94/62.11
  6. Step 6: Final answer
    x = 93.07

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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.