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Finding the Third Proportional to 62,826 and 87,312

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Solution

The third proportional to 62,826 and 87,312 is: 121,341.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,826 : 87,312 = 87,312 : x
  2. Step 2: Convert to fraction form
    62,826/87,312 = 87,312/x
  3. Step 3: Cross multiply
    62,826x = 87,312 × 87,312
  4. Step 4: Simplify right side
    62,826x = 7,623,385,344
  5. Step 5: Solve for x
    x = 7,623,385,344/62,826
  6. Step 6: Final answer
    x = 121,341.25

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.