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Finding the Third Proportional to 18,672 and 40,118.25

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Solution

The third proportional to 18,672 and 40,118.25 is: 86,197.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,672 : 40,118.25 = 40,118.25 : x
  2. Step 2: Convert to fraction form
    18,672/40,118.25 = 40,118.25/x
  3. Step 3: Cross multiply
    18,672x = 40,118.25 × 40,118.25
  4. Step 4: Simplify right side
    18,672x = 1,609,473,983.06
  5. Step 5: Solve for x
    x = 1,609,473,983.06/18,672
  6. Step 6: Final answer
    x = 86,197.19

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.