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Finding the Fourth Proportional to 51.34, 70.82 and 34.97

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Solution

The fourth proportional to 51.34, 70.82 and 34.97 is: 48.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    51.34 : 70.82 = 34.97 : x
  2. Step 2: Convert to fraction form
    51.34/70.82 = 34.97/x
  3. Step 3: Cross multiply
    51.34x = 70.82 × 34.97
  4. Step 4: Simplify right side
    51.34x = 2,476.58
  5. Step 5: Solve for x
    x = 2,476.58/51.34
  6. Step 6: Final answer
    x = 48.24

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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.