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Finding the Third Proportional to 57,007 and 87,752

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Solution

The third proportional to 57,007 and 87,752 is: 135,078.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,007 : 87,752 = 87,752 : x
  2. Step 2: Convert to fraction form
    57,007/87,752 = 87,752/x
  3. Step 3: Cross multiply
    57,007x = 87,752 × 87,752
  4. Step 4: Simplify right side
    57,007x = 7,700,413,504
  5. Step 5: Solve for x
    x = 7,700,413,504/57,007
  6. Step 6: Final answer
    x = 135,078.39

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.