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Finding the Fourth Proportional to 69,450.08, 104,178 and 20,202.08

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Solution

The fourth proportional to 69,450.08, 104,178 and 20,202.08 is: 30,303.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,450.08 : 104,178 = 20,202.08 : x
  2. Step 2: Convert to fraction form
    69,450.08/104,178 = 20,202.08/x
  3. Step 3: Cross multiply
    69,450.08x = 104,178 × 20,202.08
  4. Step 4: Simplify right side
    69,450.08x = 2,104,612,290.24
  5. Step 5: Solve for x
    x = 2,104,612,290.24/69,450.08
  6. Step 6: Final answer
    x = 30,303.96

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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.