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Finding the Third Proportional to 39,818 and 85,804

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Solution

The third proportional to 39,818 and 85,804 is: 184,899.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,818 : 85,804 = 85,804 : x
  2. Step 2: Convert to fraction form
    39,818/85,804 = 85,804/x
  3. Step 3: Cross multiply
    39,818x = 85,804 × 85,804
  4. Step 4: Simplify right side
    39,818x = 7,362,326,416
  5. Step 5: Solve for x
    x = 7,362,326,416/39,818
  6. Step 6: Final answer
    x = 184,899.45

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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.