Home / 69,209.22-103,813.86-19,290.60

Finding the Fourth Proportional to 69,209.22, 103,813.86 and 19,290.60

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Solution

The fourth proportional to 69,209.22, 103,813.86 and 19,290.60 is: 28,935.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,209.22 : 103,813.86 = 19,290.60 : x
  2. Step 2: Convert to fraction form
    69,209.22/103,813.86 = 19,290.60/x
  3. Step 3: Cross multiply
    69,209.22x = 103,813.86 × 19,290.60
  4. Step 4: Simplify right side
    69,209.22x = 2,002,632,000.85
  5. Step 5: Solve for x
    x = 2,002,632,000.85/69,209.22
  6. Step 6: Final answer
    x = 28,935.92

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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.