Home / 80,844.41-121,266.62-30,939.81

Finding the Fourth Proportional to 80,844.41, 121,266.62 and 30,939.81

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Solution

The fourth proportional to 80,844.41, 121,266.62 and 30,939.81 is: 46,409.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,844.41 : 121,266.62 = 30,939.81 : x
  2. Step 2: Convert to fraction form
    80,844.41/121,266.62 = 30,939.81/x
  3. Step 3: Cross multiply
    80,844.41x = 121,266.62 × 30,939.81
  4. Step 4: Simplify right side
    80,844.41x = 3,751,966,027.44
  5. Step 5: Solve for x
    x = 3,751,966,027.44/80,844.41
  6. Step 6: Final answer
    x = 46,409.72

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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.