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Finding the Fourth Proportional to 69,450, 104,163.36 and 19,533.36

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Solution

The fourth proportional to 69,450, 104,163.36 and 19,533.36 is: 29,296.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,450 : 104,163.36 = 19,533.36 : x
  2. Step 2: Convert to fraction form
    69,450/104,163.36 = 19,533.36/x
  3. Step 3: Cross multiply
    69,450x = 104,163.36 × 19,533.36
  4. Step 4: Simplify right side
    69,450x = 2,034,660,409.69
  5. Step 5: Solve for x
    x = 2,034,660,409.69/69,450
  6. Step 6: Final answer
    x = 29,296.77

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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.