Home / 69,826.20-104,739.30-54,079.80

Finding the Fourth Proportional to 69,826.20, 104,739.30 and 54,079.80

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Solution

The fourth proportional to 69,826.20, 104,739.30 and 54,079.80 is: 81,119.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,826.20 : 104,739.30 = 54,079.80 : x
  2. Step 2: Convert to fraction form
    69,826.20/104,739.30 = 54,079.80/x
  3. Step 3: Cross multiply
    69,826.20x = 104,739.30 × 54,079.80
  4. Step 4: Simplify right side
    69,826.20x = 5,664,280,396.14
  5. Step 5: Solve for x
    x = 5,664,280,396.14/69,826.20
  6. Step 6: Final answer
    x = 81,119.70

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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.