Home / 80,868.32-121,324.44-45,832.58

Finding the Fourth Proportional to 80,868.32, 121,324.44 and 45,832.58

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Solution

The fourth proportional to 80,868.32, 121,324.44 and 45,832.58 is: 68,761.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,868.32 : 121,324.44 = 45,832.58 : x
  2. Step 2: Convert to fraction form
    80,868.32/121,324.44 = 45,832.58/x
  3. Step 3: Cross multiply
    80,868.32x = 121,324.44 × 45,832.58
  4. Step 4: Simplify right side
    80,868.32x = 5,560,612,102.26
  5. Step 5: Solve for x
    x = 5,560,612,102.26/80,868.32
  6. Step 6: Final answer
    x = 68,761.32

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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.