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Finding the Fourth Proportional to 62.29, 92.95 and 57.76

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Solution

The fourth proportional to 62.29, 92.95 and 57.76 is: 86.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    62.29 : 92.95 = 57.76 : x
  2. Step 2: Convert to fraction form
    62.29/92.95 = 57.76/x
  3. Step 3: Cross multiply
    62.29x = 92.95 × 57.76
  4. Step 4: Simplify right side
    62.29x = 5,368.79
  5. Step 5: Solve for x
    x = 5,368.79/62.29
  6. Step 6: Final answer
    x = 86.19

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.