Home / 72,825.03-109,243.44-20,234.52

Finding the Fourth Proportional to 72,825.03, 109,243.44 and 20,234.52

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Solution

The fourth proportional to 72,825.03, 109,243.44 and 20,234.52 is: 30,353.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,825.03 : 109,243.44 = 20,234.52 : x
  2. Step 2: Convert to fraction form
    72,825.03/109,243.44 = 20,234.52/x
  3. Step 3: Cross multiply
    72,825.03x = 109,243.44 × 20,234.52
  4. Step 4: Simplify right side
    72,825.03x = 2,210,488,571.55
  5. Step 5: Solve for x
    x = 2,210,488,571.55/72,825.03
  6. Step 6: Final answer
    x = 30,353.42

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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.