Home / 69,109.80-103,638.66-22,350.12

Finding the Fourth Proportional to 69,109.80, 103,638.66 and 22,350.12

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Solution

The fourth proportional to 69,109.80, 103,638.66 and 22,350.12 is: 33,516.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,109.80 : 103,638.66 = 22,350.12 : x
  2. Step 2: Convert to fraction form
    69,109.80/103,638.66 = 22,350.12/x
  3. Step 3: Cross multiply
    69,109.80x = 103,638.66 × 22,350.12
  4. Step 4: Simplify right side
    69,109.80x = 2,316,336,487.64
  5. Step 5: Solve for x
    x = 2,316,336,487.64/69,109.80
  6. Step 6: Final answer
    x = 33,516.76

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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.