Home / 69,763.22-104,644.83-20,515.22

Finding the Fourth Proportional to 69,763.22, 104,644.83 and 20,515.22

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Solution

The fourth proportional to 69,763.22, 104,644.83 and 20,515.22 is: 30,772.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,763.22 : 104,644.83 = 20,515.22 : x
  2. Step 2: Convert to fraction form
    69,763.22/104,644.83 = 20,515.22/x
  3. Step 3: Cross multiply
    69,763.22x = 104,644.83 × 20,515.22
  4. Step 4: Simplify right side
    69,763.22x = 2,146,811,655.44
  5. Step 5: Solve for x
    x = 2,146,811,655.44/69,763.22
  6. Step 6: Final answer
    x = 30,772.83

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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.