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Finding the Fourth Proportional to 68.83, 103.34 and 55.26

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Solution

The fourth proportional to 68.83, 103.34 and 55.26 is: 82.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    68.83 : 103.34 = 55.26 : x
  2. Step 2: Convert to fraction form
    68.83/103.34 = 55.26/x
  3. Step 3: Cross multiply
    68.83x = 103.34 × 55.26
  4. Step 4: Simplify right side
    68.83x = 5,710.57
  5. Step 5: Solve for x
    x = 5,710.57/68.83
  6. Step 6: Final answer
    x = 82.97

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.