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Finding the Third Proportional to 53,481 and 83,179.50

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Solution

The third proportional to 53,481 and 83,179.50 is: 129,369.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,481 : 83,179.50 = 83,179.50 : x
  2. Step 2: Convert to fraction form
    53,481/83,179.50 = 83,179.50/x
  3. Step 3: Cross multiply
    53,481x = 83,179.50 × 83,179.50
  4. Step 4: Simplify right side
    53,481x = 6,918,829,220.25
  5. Step 5: Solve for x
    x = 6,918,829,220.25/53,481
  6. Step 6: Final answer
    x = 129,369.86

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.