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Finding the Third Proportional to 53,952 and 78,972.75

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Solution

The third proportional to 53,952 and 78,972.75 is: 115,597.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,952 : 78,972.75 = 78,972.75 : x
  2. Step 2: Convert to fraction form
    53,952/78,972.75 = 78,972.75/x
  3. Step 3: Cross multiply
    53,952x = 78,972.75 × 78,972.75
  4. Step 4: Simplify right side
    53,952x = 6,236,695,242.56
  5. Step 5: Solve for x
    x = 6,236,695,242.56/53,952
  6. Step 6: Final answer
    x = 115,597.11

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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.