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Finding the Third Proportional to 35,128 and 51,376

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Solution

The third proportional to 35,128 and 51,376 is: 75,139.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,128 : 51,376 = 51,376 : x
  2. Step 2: Convert to fraction form
    35,128/51,376 = 51,376/x
  3. Step 3: Cross multiply
    35,128x = 51,376 × 51,376
  4. Step 4: Simplify right side
    35,128x = 2,639,493,376
  5. Step 5: Solve for x
    x = 2,639,493,376/35,128
  6. Step 6: Final answer
    x = 75,139.30

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.