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Finding the Third Proportional to 56,187 and 85,434.75

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Solution

The third proportional to 56,187 and 85,434.75 is: 129,907.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,187 : 85,434.75 = 85,434.75 : x
  2. Step 2: Convert to fraction form
    56,187/85,434.75 = 85,434.75/x
  3. Step 3: Cross multiply
    56,187x = 85,434.75 × 85,434.75
  4. Step 4: Simplify right side
    56,187x = 7,299,096,507.56
  5. Step 5: Solve for x
    x = 7,299,096,507.56/56,187
  6. Step 6: Final answer
    x = 129,907.21

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.