Home / 73,163.04-109,744.60-20,572.53

Finding the Fourth Proportional to 73,163.04, 109,744.60 and 20,572.53

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Solution

The fourth proportional to 73,163.04, 109,744.60 and 20,572.53 is: 30,858.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,163.04 : 109,744.60 = 20,572.53 : x
  2. Step 2: Convert to fraction form
    73,163.04/109,744.60 = 20,572.53/x
  3. Step 3: Cross multiply
    73,163.04x = 109,744.60 × 20,572.53
  4. Step 4: Simplify right side
    73,163.04x = 2,257,723,527.12
  5. Step 5: Solve for x
    x = 2,257,723,527.12/73,163.04
  6. Step 6: Final answer
    x = 30,858.80

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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.