Home / 69,120.18-103,713.68-33,611.81

Finding the Fourth Proportional to 69,120.18, 103,713.68 and 33,611.81

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Solution

The fourth proportional to 69,120.18, 103,713.68 and 33,611.81 is: 50,433.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,120.18 : 103,713.68 = 33,611.81 : x
  2. Step 2: Convert to fraction form
    69,120.18/103,713.68 = 33,611.81/x
  3. Step 3: Cross multiply
    69,120.18x = 103,713.68 × 33,611.81
  4. Step 4: Simplify right side
    69,120.18x = 3,486,004,072.02
  5. Step 5: Solve for x
    x = 3,486,004,072.02/69,120.18
  6. Step 6: Final answer
    x = 50,433.96

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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.