Home / 57,635.08-86,449.38-20,180.68

Finding the Fourth Proportional to 57,635.08, 86,449.38 and 20,180.68

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Solution

The fourth proportional to 57,635.08, 86,449.38 and 20,180.68 is: 30,269.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,635.08 : 86,449.38 = 20,180.68 : x
  2. Step 2: Convert to fraction form
    57,635.08/86,449.38 = 20,180.68/x
  3. Step 3: Cross multiply
    57,635.08x = 86,449.38 × 20,180.68
  4. Step 4: Simplify right side
    57,635.08x = 1,744,607,273.98
  5. Step 5: Solve for x
    x = 1,744,607,273.98/57,635.08
  6. Step 6: Final answer
    x = 30,269.89

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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.