Home / 73,073.24-109,601.28-20,486.96

Finding the Fourth Proportional to 73,073.24, 109,601.28 and 20,486.96

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Solution

The fourth proportional to 73,073.24, 109,601.28 and 20,486.96 is: 30,728.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,073.24 : 109,601.28 = 20,486.96 : x
  2. Step 2: Convert to fraction form
    73,073.24/109,601.28 = 20,486.96/x
  3. Step 3: Cross multiply
    73,073.24x = 109,601.28 × 20,486.96
  4. Step 4: Simplify right side
    73,073.24x = 2,245,397,039.31
  5. Step 5: Solve for x
    x = 2,245,397,039.31/73,073.24
  6. Step 6: Final answer
    x = 30,728.03

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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.