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Finding the Third Proportional to 56,511 and 76,749.75

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Solution

The third proportional to 56,511 and 76,749.75 is: 104,236.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,511 : 76,749.75 = 76,749.75 : x
  2. Step 2: Convert to fraction form
    56,511/76,749.75 = 76,749.75/x
  3. Step 3: Cross multiply
    56,511x = 76,749.75 × 76,749.75
  4. Step 4: Simplify right side
    56,511x = 5,890,524,125.06
  5. Step 5: Solve for x
    x = 5,890,524,125.06/56,511
  6. Step 6: Final answer
    x = 104,236.77

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.