Home / 43,845.43-65,777.89-20,459.11

Finding the Fourth Proportional to 43,845.43, 65,777.89 and 20,459.11

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Solution

The fourth proportional to 43,845.43, 65,777.89 and 20,459.11 is: 30,693.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,845.43 : 65,777.89 = 20,459.11 : x
  2. Step 2: Convert to fraction form
    43,845.43/65,777.89 = 20,459.11/x
  3. Step 3: Cross multiply
    43,845.43x = 65,777.89 × 20,459.11
  4. Step 4: Simplify right side
    43,845.43x = 1,345,757,087.08
  5. Step 5: Solve for x
    x = 1,345,757,087.08/43,845.43
  6. Step 6: Final answer
    x = 30,693.21

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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.