Home / 69,074.87-103,609.22-21,688.83

Finding the Fourth Proportional to 69,074.87, 103,609.22 and 21,688.83

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Solution

The fourth proportional to 69,074.87, 103,609.22 and 21,688.83 is: 32,532.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,074.87 : 103,609.22 = 21,688.83 : x
  2. Step 2: Convert to fraction form
    69,074.87/103,609.22 = 21,688.83/x
  3. Step 3: Cross multiply
    69,074.87x = 103,609.22 × 21,688.83
  4. Step 4: Simplify right side
    69,074.87x = 2,247,162,650.57
  5. Step 5: Solve for x
    x = 2,247,162,650.57/69,074.87
  6. Step 6: Final answer
    x = 32,532.28

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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.