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Finding the Third Proportional to 60,628 and 91,780.75

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Solution

The third proportional to 60,628 and 91,780.75 is: 138,940.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,628 : 91,780.75 = 91,780.75 : x
  2. Step 2: Convert to fraction form
    60,628/91,780.75 = 91,780.75/x
  3. Step 3: Cross multiply
    60,628x = 91,780.75 × 91,780.75
  4. Step 4: Simplify right side
    60,628x = 8,423,706,070.56
  5. Step 5: Solve for x
    x = 8,423,706,070.56/60,628
  6. Step 6: Final answer
    x = 138,940.85

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.