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Finding the Third Proportional to 18,187.03 and 36,271.55

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Solution

The third proportional to 18,187.03 and 36,271.55 is: 72,338.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,187.03 : 36,271.55 = 36,271.55 : x
  2. Step 2: Convert to fraction form
    18,187.03/36,271.55 = 36,271.55/x
  3. Step 3: Cross multiply
    18,187.03x = 36,271.55 × 36,271.55
  4. Step 4: Simplify right side
    18,187.03x = 1,315,625,112.71
  5. Step 5: Solve for x
    x = 1,315,625,112.71/18,187.03
  6. Step 6: Final answer
    x = 72,338.64

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Why These Related Problems?

These problems maintain the same ratio (1.99) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.