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Finding the Third Proportional to 38.63 and 56.63

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Solution

The third proportional to 38.63 and 56.63 is: 83.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    38.63 : 56.63 = 56.63 : x
  2. Step 2: Convert to fraction form
    38.63/56.63 = 56.63/x
  3. Step 3: Cross multiply
    38.63x = 56.63 × 56.63
  4. Step 4: Simplify right side
    38.63x = 3,206.39
  5. Step 5: Solve for x
    x = 3,206.39/38.63
  6. Step 6: Final answer
    x = 83.01

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.