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Finding the Third Proportional to 51,752 and 78,588

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Solution

The third proportional to 51,752 and 78,588 is: 119,339.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,752 : 78,588 = 78,588 : x
  2. Step 2: Convert to fraction form
    51,752/78,588 = 78,588/x
  3. Step 3: Cross multiply
    51,752x = 78,588 × 78,588
  4. Step 4: Simplify right side
    51,752x = 6,176,073,744
  5. Step 5: Solve for x
    x = 6,176,073,744/51,752
  6. Step 6: Final answer
    x = 119,339.81

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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.