Home / 57,086.96-85,609.14-19,636.44

Finding the Fourth Proportional to 57,086.96, 85,609.14 and 19,636.44

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Solution

The fourth proportional to 57,086.96, 85,609.14 and 19,636.44 is: 29,447.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,086.96 : 85,609.14 = 19,636.44 : x
  2. Step 2: Convert to fraction form
    57,086.96/85,609.14 = 19,636.44/x
  3. Step 3: Cross multiply
    57,086.96x = 85,609.14 × 19,636.44
  4. Step 4: Simplify right side
    57,086.96x = 1,681,058,741.06
  5. Step 5: Solve for x
    x = 1,681,058,741.06/57,086.96
  6. Step 6: Final answer
    x = 29,447.33

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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.