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Finding the Third Proportional to 42,618 and 63,683

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Solution

The third proportional to 42,618 and 63,683 is: 95,159.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,618 : 63,683 = 63,683 : x
  2. Step 2: Convert to fraction form
    42,618/63,683 = 63,683/x
  3. Step 3: Cross multiply
    42,618x = 63,683 × 63,683
  4. Step 4: Simplify right side
    42,618x = 4,055,524,489
  5. Step 5: Solve for x
    x = 4,055,524,489/42,618
  6. Step 6: Final answer
    x = 95,159.90

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.