Home / 80,796.65-121,118.30-28,192.01

Finding the Fourth Proportional to 80,796.65, 121,118.30 and 28,192.01

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Solution

The fourth proportional to 80,796.65, 121,118.30 and 28,192.01 is: 42,261.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,796.65 : 121,118.30 = 28,192.01 : x
  2. Step 2: Convert to fraction form
    80,796.65/121,118.30 = 28,192.01/x
  3. Step 3: Cross multiply
    80,796.65x = 121,118.30 × 28,192.01
  4. Step 4: Simplify right side
    80,796.65x = 3,414,568,183.82
  5. Step 5: Solve for x
    x = 3,414,568,183.82/80,796.65
  6. Step 6: Final answer
    x = 42,261.26

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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.