Home / 69,724.56-104,544.64-28,122.96

Finding the Fourth Proportional to 69,724.56, 104,544.64 and 28,122.96

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Solution

The fourth proportional to 69,724.56, 104,544.64 and 28,122.96 is: 42,167.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,724.56 : 104,544.64 = 28,122.96 : x
  2. Step 2: Convert to fraction form
    69,724.56/104,544.64 = 28,122.96/x
  3. Step 3: Cross multiply
    69,724.56x = 104,544.64 × 28,122.96
  4. Step 4: Simplify right side
    69,724.56x = 2,940,104,728.93
  5. Step 5: Solve for x
    x = 2,940,104,728.93/69,724.56
  6. Step 6: Final answer
    x = 42,167.42

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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.