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Finding the Fourth Proportional to 62.52, 85.68 and 61.84

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Solution

The fourth proportional to 62.52, 85.68 and 61.84 is: 84.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    62.52 : 85.68 = 61.84 : x
  2. Step 2: Convert to fraction form
    62.52/85.68 = 61.84/x
  3. Step 3: Cross multiply
    62.52x = 85.68 × 61.84
  4. Step 4: Simplify right side
    62.52x = 5,298.45
  5. Step 5: Solve for x
    x = 5,298.45/62.52
  6. Step 6: Final answer
    x = 84.75

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.