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Finding the Third Proportional to 20,975.25 and 40,887.75

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Solution

The third proportional to 20,975.25 and 40,887.75 is: 79,703.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,975.25 : 40,887.75 = 40,887.75 : x
  2. Step 2: Convert to fraction form
    20,975.25/40,887.75 = 40,887.75/x
  3. Step 3: Cross multiply
    20,975.25x = 40,887.75 × 40,887.75
  4. Step 4: Simplify right side
    20,975.25x = 1,671,808,100.06
  5. Step 5: Solve for x
    x = 1,671,808,100.06/20,975.25
  6. Step 6: Final answer
    x = 79,703.85

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Why These Related Problems?

These problems maintain the same ratio (1.95) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.