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Finding the Third Proportional to 63,390 and 88,618

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Solution

The third proportional to 63,390 and 88,618 is: 123,886.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,390 : 88,618 = 88,618 : x
  2. Step 2: Convert to fraction form
    63,390/88,618 = 88,618/x
  3. Step 3: Cross multiply
    63,390x = 88,618 × 88,618
  4. Step 4: Simplify right side
    63,390x = 7,853,149,924
  5. Step 5: Solve for x
    x = 7,853,149,924/63,390
  6. Step 6: Final answer
    x = 123,886.26

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.