Home / 57,270.21-85,884.72-19,820.12

Finding the Fourth Proportional to 57,270.21, 85,884.72 and 19,820.12

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Solution

The fourth proportional to 57,270.21, 85,884.72 and 19,820.12 is: 29,723.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,270.21 : 85,884.72 = 19,820.12 : x
  2. Step 2: Convert to fraction form
    57,270.21/85,884.72 = 19,820.12/x
  3. Step 3: Cross multiply
    57,270.21x = 85,884.72 × 19,820.12
  4. Step 4: Simplify right side
    57,270.21x = 1,702,245,027.14
  5. Step 5: Solve for x
    x = 1,702,245,027.14/57,270.21
  6. Step 6: Final answer
    x = 29,723.04

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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.