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Finding the Third Proportional to 39,992 and 85,803

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Solution

The third proportional to 39,992 and 85,803 is: 184,090.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,992 : 85,803 = 85,803 : x
  2. Step 2: Convert to fraction form
    39,992/85,803 = 85,803/x
  3. Step 3: Cross multiply
    39,992x = 85,803 × 85,803
  4. Step 4: Simplify right side
    39,992x = 7,362,154,809
  5. Step 5: Solve for x
    x = 7,362,154,809/39,992
  6. Step 6: Final answer
    x = 184,090.69

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.