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Finding the Fourth Proportional to 69,450.58, 104,178.75 and 20,202.58

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Solution

The fourth proportional to 69,450.58, 104,178.75 and 20,202.58 is: 30,304.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,450.58 : 104,178.75 = 20,202.58 : x
  2. Step 2: Convert to fraction form
    69,450.58/104,178.75 = 20,202.58/x
  3. Step 3: Cross multiply
    69,450.58x = 104,178.75 × 20,202.58
  4. Step 4: Simplify right side
    69,450.58x = 2,104,679,531.18
  5. Step 5: Solve for x
    x = 2,104,679,531.18/69,450.58
  6. Step 6: Final answer
    x = 30,304.71

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1.5x scale

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.