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Finding the Fourth Proportional to 62.79, 85.95 and 60.95

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Solution

The fourth proportional to 62.79, 85.95 and 60.95 is: 83.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    62.79 : 85.95 = 60.95 : x
  2. Step 2: Convert to fraction form
    62.79/85.95 = 60.95/x
  3. Step 3: Cross multiply
    62.79x = 85.95 × 60.95
  4. Step 4: Simplify right side
    62.79x = 5,238.22
  5. Step 5: Solve for x
    x = 5,238.22/62.79
  6. Step 6: Final answer
    x = 83.42

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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.