Home / 80,419.64-110,906.40-50,207.72

Finding the Fourth Proportional to 80,419.64, 110,906.40 and 50,207.72

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Solution

The fourth proportional to 80,419.64, 110,906.40 and 50,207.72 is: 69,241.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,419.64 : 110,906.40 = 50,207.72 : x
  2. Step 2: Convert to fraction form
    80,419.64/110,906.40 = 50,207.72/x
  3. Step 3: Cross multiply
    80,419.64x = 110,906.40 × 50,207.72
  4. Step 4: Simplify right side
    80,419.64x = 5,568,357,477.41
  5. Step 5: Solve for x
    x = 5,568,357,477.41/80,419.64
  6. Step 6: Final answer
    x = 69,241.26

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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.