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Finding the Third Proportional to 47,816 and 66,878

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Solution

The third proportional to 47,816 and 66,878 is: 93,539.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,816 : 66,878 = 66,878 : x
  2. Step 2: Convert to fraction form
    47,816/66,878 = 66,878/x
  3. Step 3: Cross multiply
    47,816x = 66,878 × 66,878
  4. Step 4: Simplify right side
    47,816x = 4,472,666,884
  5. Step 5: Solve for x
    x = 4,472,666,884/47,816
  6. Step 6: Final answer
    x = 93,539.13

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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.