Home / 72,626.10-108,902.70-33,138.60

Finding the Fourth Proportional to 72,626.10, 108,902.70 and 33,138.60

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Solution

The fourth proportional to 72,626.10, 108,902.70 and 33,138.60 is: 49,691.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,626.10 : 108,902.70 = 33,138.60 : x
  2. Step 2: Convert to fraction form
    72,626.10/108,902.70 = 33,138.60/x
  3. Step 3: Cross multiply
    72,626.10x = 108,902.70 × 33,138.60
  4. Step 4: Simplify right side
    72,626.10x = 3,608,883,014.22
  5. Step 5: Solve for x
    x = 3,608,883,014.22/72,626.10
  6. Step 6: Final answer
    x = 49,691.27

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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.