Home / 57,018.40-85,467.12-21,942.88

Finding the Fourth Proportional to 57,018.40, 85,467.12 and 21,942.88

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Solution

The fourth proportional to 57,018.40, 85,467.12 and 21,942.88 is: 32,891.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,018.40 : 85,467.12 = 21,942.88 : x
  2. Step 2: Convert to fraction form
    57,018.40/85,467.12 = 21,942.88/x
  3. Step 3: Cross multiply
    57,018.40x = 85,467.12 × 21,942.88
  4. Step 4: Simplify right side
    57,018.40x = 1,875,394,758.11
  5. Step 5: Solve for x
    x = 1,875,394,758.11/57,018.40
  6. Step 6: Final answer
    x = 32,891.04

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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.