Home / 69,850.12-104,772.60-30,407.32

Finding the Fourth Proportional to 69,850.12, 104,772.60 and 30,407.32

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Solution

The fourth proportional to 69,850.12, 104,772.60 and 30,407.32 is: 45,609.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,850.12 : 104,772.60 = 30,407.32 : x
  2. Step 2: Convert to fraction form
    69,850.12/104,772.60 = 30,407.32/x
  3. Step 3: Cross multiply
    69,850.12x = 104,772.60 × 30,407.32
  4. Step 4: Simplify right side
    69,850.12x = 3,185,853,975.43
  5. Step 5: Solve for x
    x = 3,185,853,975.43/69,850.12
  6. Step 6: Final answer
    x = 45,609.86

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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.