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Finding the Third Proportional to 28,698 and 60,816

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Solution

The third proportional to 28,698 and 60,816 is: 128,879.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,698 : 60,816 = 60,816 : x
  2. Step 2: Convert to fraction form
    28,698/60,816 = 60,816/x
  3. Step 3: Cross multiply
    28,698x = 60,816 × 60,816
  4. Step 4: Simplify right side
    28,698x = 3,698,585,856
  5. Step 5: Solve for x
    x = 3,698,585,856/28,698
  6. Step 6: Final answer
    x = 128,879.57

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.