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Finding the Third Proportional to 43,539 and 65,139.75

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Solution

The third proportional to 43,539 and 65,139.75 is: 97,457.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,539 : 65,139.75 = 65,139.75 : x
  2. Step 2: Convert to fraction form
    43,539/65,139.75 = 65,139.75/x
  3. Step 3: Cross multiply
    43,539x = 65,139.75 × 65,139.75
  4. Step 4: Simplify right side
    43,539x = 4,243,187,030.06
  5. Step 5: Solve for x
    x = 4,243,187,030.06/43,539
  6. Step 6: Final answer
    x = 97,457.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.