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Finding the Fourth Proportional to 71.22, 98.29 and 60.34

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Solution

The fourth proportional to 71.22, 98.29 and 60.34 is: 83.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    71.22 : 98.29 = 60.34 : x
  2. Step 2: Convert to fraction form
    71.22/98.29 = 60.34/x
  3. Step 3: Cross multiply
    71.22x = 98.29 × 60.34
  4. Step 4: Simplify right side
    71.22x = 5,930.82
  5. Step 5: Solve for x
    x = 5,930.82/71.22
  6. Step 6: Final answer
    x = 83.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.