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Finding the Third Proportional to 28,571 and 66,770

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Solution

The third proportional to 28,571 and 66,770 is: 156,040.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,571 : 66,770 = 66,770 : x
  2. Step 2: Convert to fraction form
    28,571/66,770 = 66,770/x
  3. Step 3: Cross multiply
    28,571x = 66,770 × 66,770
  4. Step 4: Simplify right side
    28,571x = 4,458,232,900
  5. Step 5: Solve for x
    x = 4,458,232,900/28,571
  6. Step 6: Final answer
    x = 156,040.49

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.