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Finding the Third Proportional to 48,690 and 76,275

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Solution

The third proportional to 48,690 and 76,275 is: 119,488.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,690 : 76,275 = 76,275 : x
  2. Step 2: Convert to fraction form
    48,690/76,275 = 76,275/x
  3. Step 3: Cross multiply
    48,690x = 76,275 × 76,275
  4. Step 4: Simplify right side
    48,690x = 5,817,875,625
  5. Step 5: Solve for x
    x = 5,817,875,625/48,690
  6. Step 6: Final answer
    x = 119,488.10

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.