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Finding the Fourth Proportional to 60.25, 83.16 and 34.39

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Solution

The fourth proportional to 60.25, 83.16 and 34.39 is: 47.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    60.25 : 83.16 = 34.39 : x
  2. Step 2: Convert to fraction form
    60.25/83.16 = 34.39/x
  3. Step 3: Cross multiply
    60.25x = 83.16 × 34.39
  4. Step 4: Simplify right side
    60.25x = 2,859.87
  5. Step 5: Solve for x
    x = 2,859.87/60.25
  6. Step 6: Final answer
    x = 47.47

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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.