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Finding the Third Proportional to 53,987 and 84,682

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Solution

The third proportional to 53,987 and 84,682 is: 132,829.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,987 : 84,682 = 84,682 : x
  2. Step 2: Convert to fraction form
    53,987/84,682 = 84,682/x
  3. Step 3: Cross multiply
    53,987x = 84,682 × 84,682
  4. Step 4: Simplify right side
    53,987x = 7,171,041,124
  5. Step 5: Solve for x
    x = 7,171,041,124/53,987
  6. Step 6: Final answer
    x = 132,829.04

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.