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Finding the Third Proportional to 45,378 and 63,531

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Solution

The third proportional to 45,378 and 63,531 is: 88,945.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,378 : 63,531 = 63,531 : x
  2. Step 2: Convert to fraction form
    45,378/63,531 = 63,531/x
  3. Step 3: Cross multiply
    45,378x = 63,531 × 63,531
  4. Step 4: Simplify right side
    45,378x = 4,036,187,961
  5. Step 5: Solve for x
    x = 4,036,187,961/45,378
  6. Step 6: Final answer
    x = 88,945.92

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.