Home / 80,228.76-110,739.69-51,936.36

Finding the Fourth Proportional to 80,228.76, 110,739.69 and 51,936.36

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Solution

The fourth proportional to 80,228.76, 110,739.69 and 51,936.36 is: 71,687.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,228.76 : 110,739.69 = 51,936.36 : x
  2. Step 2: Convert to fraction form
    80,228.76/110,739.69 = 51,936.36/x
  3. Step 3: Cross multiply
    80,228.76x = 110,739.69 × 51,936.36
  4. Step 4: Simplify right side
    80,228.76x = 5,751,416,406.13
  5. Step 5: Solve for x
    x = 5,751,416,406.13/80,228.76
  6. Step 6: Final answer
    x = 71,687.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.