Home / 73,212.44-109,743.24-28,821.20

Finding the Fourth Proportional to 73,212.44, 109,743.24 and 28,821.20

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Solution

The fourth proportional to 73,212.44, 109,743.24 and 28,821.20 is: 43,202.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,212.44 : 109,743.24 = 28,821.20 : x
  2. Step 2: Convert to fraction form
    73,212.44/109,743.24 = 28,821.20/x
  3. Step 3: Cross multiply
    73,212.44x = 109,743.24 × 28,821.20
  4. Step 4: Simplify right side
    73,212.44x = 3,162,931,868.69
  5. Step 5: Solve for x
    x = 3,162,931,868.69/73,212.44
  6. Step 6: Final answer
    x = 43,202.11

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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.