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Finding the Third Proportional to 54,339 and 72,130.50

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Solution

The third proportional to 54,339 and 72,130.50 is: 95,747.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,339 : 72,130.50 = 72,130.50 : x
  2. Step 2: Convert to fraction form
    54,339/72,130.50 = 72,130.50/x
  3. Step 3: Cross multiply
    54,339x = 72,130.50 × 72,130.50
  4. Step 4: Simplify right side
    54,339x = 5,202,809,030.25
  5. Step 5: Solve for x
    x = 5,202,809,030.25/54,339
  6. Step 6: Final answer
    x = 95,747.24

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.