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Finding the Fourth Proportional to 69,604, 104,409.84 and 20,359.84

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Solution

The fourth proportional to 69,604, 104,409.84 and 20,359.84 is: 30,540.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,604 : 104,409.84 = 20,359.84 : x
  2. Step 2: Convert to fraction form
    69,604/104,409.84 = 20,359.84/x
  3. Step 3: Cross multiply
    69,604x = 104,409.84 × 20,359.84
  4. Step 4: Simplify right side
    69,604x = 2,125,767,636.83
  5. Step 5: Solve for x
    x = 2,125,767,636.83/69,604
  6. Step 6: Final answer
    x = 30,540.88

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.