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Finding the Third Proportional to 18,319.50 and 35,673.75

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Solution

The third proportional to 18,319.50 and 35,673.75 is: 69,467.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,319.50 : 35,673.75 = 35,673.75 : x
  2. Step 2: Convert to fraction form
    18,319.50/35,673.75 = 35,673.75/x
  3. Step 3: Cross multiply
    18,319.50x = 35,673.75 × 35,673.75
  4. Step 4: Simplify right side
    18,319.50x = 1,272,616,439.06
  5. Step 5: Solve for x
    x = 1,272,616,439.06/18,319.50
  6. Step 6: Final answer
    x = 69,467.86

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Why These Related Problems?

These problems maintain the same ratio (1.95) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.