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Finding the Third Proportional to 55,936.13 and 78,207.19

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Solution

The third proportional to 55,936.13 and 78,207.19 is: 109,345.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,936.13 : 78,207.19 = 78,207.19 : x
  2. Step 2: Convert to fraction form
    55,936.13/78,207.19 = 78,207.19/x
  3. Step 3: Cross multiply
    55,936.13x = 78,207.19 × 78,207.19
  4. Step 4: Simplify right side
    55,936.13x = 6,116,364,176.66
  5. Step 5: Solve for x
    x = 6,116,364,176.66/55,936.13
  6. Step 6: Final answer
    x = 109,345.51

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.