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Finding the Third Proportional to 54,143.75 and 83,328.75

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Solution

The third proportional to 54,143.75 and 83,328.75 is: 128,245.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,143.75 : 83,328.75 = 83,328.75 : x
  2. Step 2: Convert to fraction form
    54,143.75/83,328.75 = 83,328.75/x
  3. Step 3: Cross multiply
    54,143.75x = 83,328.75 × 83,328.75
  4. Step 4: Simplify right side
    54,143.75x = 6,943,680,576.56
  5. Step 5: Solve for x
    x = 6,943,680,576.56/54,143.75
  6. Step 6: Final answer
    x = 128,245.28

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.