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Finding the Third Proportional to 43,788 and 69,348

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Solution

The third proportional to 43,788 and 69,348 is: 109,827.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,788 : 69,348 = 69,348 : x
  2. Step 2: Convert to fraction form
    43,788/69,348 = 69,348/x
  3. Step 3: Cross multiply
    43,788x = 69,348 × 69,348
  4. Step 4: Simplify right side
    43,788x = 4,809,145,104
  5. Step 5: Solve for x
    x = 4,809,145,104/43,788
  6. Step 6: Final answer
    x = 109,827.92

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.