Home / 73,218.60-109,834.26-20,628.48

Finding the Fourth Proportional to 73,218.60, 109,834.26 and 20,628.48

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Solution

The fourth proportional to 73,218.60, 109,834.26 and 20,628.48 is: 30,944.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,218.60 : 109,834.26 = 20,628.48 : x
  2. Step 2: Convert to fraction form
    73,218.60/109,834.26 = 20,628.48/x
  3. Step 3: Cross multiply
    73,218.60x = 109,834.26 × 20,628.48
  4. Step 4: Simplify right side
    73,218.60x = 2,265,713,835.72
  5. Step 5: Solve for x
    x = 2,265,713,835.72/73,218.60
  6. Step 6: Final answer
    x = 30,944.51

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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.