Home / 64,540.20-96,806.88-20,161.92

Finding the Fourth Proportional to 64,540.20, 96,806.88 and 20,161.92

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Solution

The fourth proportional to 64,540.20, 96,806.88 and 20,161.92 is: 30,241.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,540.20 : 96,806.88 = 20,161.92 : x
  2. Step 2: Convert to fraction form
    64,540.20/96,806.88 = 20,161.92/x
  3. Step 3: Cross multiply
    64,540.20x = 96,806.88 × 20,161.92
  4. Step 4: Simplify right side
    64,540.20x = 1,951,812,570.01
  5. Step 5: Solve for x
    x = 1,951,812,570.01/64,540.20
  6. Step 6: Final answer
    x = 30,241.81

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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.