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Finding the Third Proportional to 40,840.25 and 87,938

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Solution

The third proportional to 40,840.25 and 87,938 is: 189,349.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,840.25 : 87,938 = 87,938 : x
  2. Step 2: Convert to fraction form
    40,840.25/87,938 = 87,938/x
  3. Step 3: Cross multiply
    40,840.25x = 87,938 × 87,938
  4. Step 4: Simplify right side
    40,840.25x = 7,733,091,844
  5. Step 5: Solve for x
    x = 7,733,091,844/40,840.25
  6. Step 6: Final answer
    x = 189,349.77

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.