Home / 67,230.21-100,821.81-19,832.73

Finding the Fourth Proportional to 67,230.21, 100,821.81 and 19,832.73

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Solution

The fourth proportional to 67,230.21, 100,821.81 and 19,832.73 is: 29,742.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,230.21 : 100,821.81 = 19,832.73 : x
  2. Step 2: Convert to fraction form
    67,230.21/100,821.81 = 19,832.73/x
  3. Step 3: Cross multiply
    67,230.21x = 100,821.81 × 19,832.73
  4. Step 4: Simplify right side
    67,230.21x = 1,999,571,735.84
  5. Step 5: Solve for x
    x = 1,999,571,735.84/67,230.21
  6. Step 6: Final answer
    x = 29,742.16

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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.