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Finding the Third Proportional to 28 and 54.63

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Solution

The third proportional to 28 and 54.63 is: 106.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28 : 54.63 = 54.63 : x
  2. Step 2: Convert to fraction form
    28/54.63 = 54.63/x
  3. Step 3: Cross multiply
    28x = 54.63 × 54.63
  4. Step 4: Simplify right side
    28x = 2,983.89
  5. Step 5: Solve for x
    x = 2,983.89/28
  6. Step 6: Final answer
    x = 106.57

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Why These Related Problems?

These problems maintain the same ratio (1.95) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.