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Finding the Fourth Proportional to 62.11, 92.99 and 57.61

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Solution

The fourth proportional to 62.11, 92.99 and 57.61 is: 86.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    62.11 : 92.99 = 57.61 : x
  2. Step 2: Convert to fraction form
    62.11/92.99 = 57.61/x
  3. Step 3: Cross multiply
    62.11x = 92.99 × 57.61
  4. Step 4: Simplify right side
    62.11x = 5,356.87
  5. Step 5: Solve for x
    x = 5,356.87/62.11
  6. Step 6: Final answer
    x = 86.25

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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.