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Finding the Third Proportional to 18,690.75 and 43,861.50

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Solution

The third proportional to 18,690.75 and 43,861.50 is: 102,929.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,690.75 : 43,861.50 = 43,861.50 : x
  2. Step 2: Convert to fraction form
    18,690.75/43,861.50 = 43,861.50/x
  3. Step 3: Cross multiply
    18,690.75x = 43,861.50 × 43,861.50
  4. Step 4: Simplify right side
    18,690.75x = 1,923,831,182.25
  5. Step 5: Solve for x
    x = 1,923,831,182.25/18,690.75
  6. Step 6: Final answer
    x = 102,929.59

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Why These Related Problems?

These problems maintain the same ratio (2.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.