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Finding the Third Proportional to 39.19 and 59.63

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Solution

The third proportional to 39.19 and 59.63 is: 90.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    39.19 : 59.63 = 59.63 : x
  2. Step 2: Convert to fraction form
    39.19/59.63 = 59.63/x
  3. Step 3: Cross multiply
    39.19x = 59.63 × 59.63
  4. Step 4: Simplify right side
    39.19x = 3,555.14
  5. Step 5: Solve for x
    x = 3,555.14/39.19
  6. Step 6: Final answer
    x = 90.72

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.