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Finding the Third Proportional to 56,616 and 79,200

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Solution

The third proportional to 56,616 and 79,200 is: 110,792.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,616 : 79,200 = 79,200 : x
  2. Step 2: Convert to fraction form
    56,616/79,200 = 79,200/x
  3. Step 3: Cross multiply
    56,616x = 79,200 × 79,200
  4. Step 4: Simplify right side
    56,616x = 6,272,640,000
  5. Step 5: Solve for x
    x = 6,272,640,000/56,616
  6. Step 6: Final answer
    x = 110,792.71

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.