Home / 57,719.22-86,591.82-20,281.88

Finding the Fourth Proportional to 57,719.22, 86,591.82 and 20,281.88

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Solution

The fourth proportional to 57,719.22, 86,591.82 and 20,281.88 is: 30,427.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,719.22 : 86,591.82 = 20,281.88 : x
  2. Step 2: Convert to fraction form
    57,719.22/86,591.82 = 20,281.88/x
  3. Step 3: Cross multiply
    57,719.22x = 86,591.82 × 20,281.88
  4. Step 4: Simplify right side
    57,719.22x = 1,756,244,902.22
  5. Step 5: Solve for x
    x = 1,756,244,902.22/57,719.22
  6. Step 6: Final answer
    x = 30,427.38

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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.