Home / 72,690.10-108,998.70-33,202.60

Finding the Fourth Proportional to 72,690.10, 108,998.70 and 33,202.60

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Solution

The fourth proportional to 72,690.10, 108,998.70 and 33,202.60 is: 49,787.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,690.10 : 108,998.70 = 33,202.60 : x
  2. Step 2: Convert to fraction form
    72,690.10/108,998.70 = 33,202.60/x
  3. Step 3: Cross multiply
    72,690.10x = 108,998.70 × 33,202.60
  4. Step 4: Simplify right side
    72,690.10x = 3,619,040,236.62
  5. Step 5: Solve for x
    x = 3,619,040,236.62/72,690.10
  6. Step 6: Final answer
    x = 49,787.25

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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.