Home / 73,072.24-109,599.78-20,485.96

Finding the Fourth Proportional to 73,072.24, 109,599.78 and 20,485.96

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Solution

The fourth proportional to 73,072.24, 109,599.78 and 20,485.96 is: 30,726.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,072.24 : 109,599.78 = 20,485.96 : x
  2. Step 2: Convert to fraction form
    73,072.24/109,599.78 = 20,485.96/x
  3. Step 3: Cross multiply
    73,072.24x = 109,599.78 × 20,485.96
  4. Step 4: Simplify right side
    73,072.24x = 2,245,256,709.09
  5. Step 5: Solve for x
    x = 2,245,256,709.09/73,072.24
  6. Step 6: Final answer
    x = 30,726.53

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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.