Home / 69,074.85-103,609.23-21,688.83

Finding the Fourth Proportional to 69,074.85, 103,609.23 and 21,688.83

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Solution

The fourth proportional to 69,074.85, 103,609.23 and 21,688.83 is: 32,532.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,074.85 : 103,609.23 = 21,688.83 : x
  2. Step 2: Convert to fraction form
    69,074.85/103,609.23 = 21,688.83/x
  3. Step 3: Cross multiply
    69,074.85x = 103,609.23 × 21,688.83
  4. Step 4: Simplify right side
    69,074.85x = 2,247,162,975.90
  5. Step 5: Solve for x
    x = 2,247,162,975.90/69,074.85
  6. Step 6: Final answer
    x = 32,532.29

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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.