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Finding the Fourth Proportional to 52.76, 72.83 and 34.39

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Solution

The fourth proportional to 52.76, 72.83 and 34.39 is: 47.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    52.76 : 72.83 = 34.39 : x
  2. Step 2: Convert to fraction form
    52.76/72.83 = 34.39/x
  3. Step 3: Cross multiply
    52.76x = 72.83 × 34.39
  4. Step 4: Simplify right side
    52.76x = 2,504.09
  5. Step 5: Solve for x
    x = 2,504.09/52.76
  6. Step 6: Final answer
    x = 47.46

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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.