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Finding the Third Proportional to 15,138.75 and 35,179.50

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Solution

The third proportional to 15,138.75 and 35,179.50 is: 81,750.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,138.75 : 35,179.50 = 35,179.50 : x
  2. Step 2: Convert to fraction form
    15,138.75/35,179.50 = 35,179.50/x
  3. Step 3: Cross multiply
    15,138.75x = 35,179.50 × 35,179.50
  4. Step 4: Simplify right side
    15,138.75x = 1,237,597,220.25
  5. Step 5: Solve for x
    x = 1,237,597,220.25/15,138.75
  6. Step 6: Final answer
    x = 81,750.29

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Why These Related Problems?

These problems maintain the same ratio (2.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.