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Finding the Third Proportional to 39,998 and 85,530

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Solution

The third proportional to 39,998 and 85,530 is: 182,893.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,998 : 85,530 = 85,530 : x
  2. Step 2: Convert to fraction form
    39,998/85,530 = 85,530/x
  3. Step 3: Cross multiply
    39,998x = 85,530 × 85,530
  4. Step 4: Simplify right side
    39,998x = 7,315,380,900
  5. Step 5: Solve for x
    x = 7,315,380,900/39,998
  6. Step 6: Final answer
    x = 182,893.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.