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Finding the Third Proportional to 39,998 and 86,620

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Solution

The third proportional to 39,998 and 86,620 is: 187,584.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,998 : 86,620 = 86,620 : x
  2. Step 2: Convert to fraction form
    39,998/86,620 = 86,620/x
  3. Step 3: Cross multiply
    39,998x = 86,620 × 86,620
  4. Step 4: Simplify right side
    39,998x = 7,503,024,400
  5. Step 5: Solve for x
    x = 7,503,024,400/39,998
  6. Step 6: Final answer
    x = 187,584.99

Related Problems

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.