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Finding the Third Proportional to 18,690.75 and 40,763.25

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Solution

The third proportional to 18,690.75 and 40,763.25 is: 88,901.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,690.75 : 40,763.25 = 40,763.25 : x
  2. Step 2: Convert to fraction form
    18,690.75/40,763.25 = 40,763.25/x
  3. Step 3: Cross multiply
    18,690.75x = 40,763.25 × 40,763.25
  4. Step 4: Simplify right side
    18,690.75x = 1,661,642,550.56
  5. Step 5: Solve for x
    x = 1,661,642,550.56/18,690.75
  6. Step 6: Final answer
    x = 88,901.87

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.