Home / 57,148.57-85,726.97-19,708.11

Finding the Fourth Proportional to 57,148.57, 85,726.97 and 19,708.11

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Solution

The fourth proportional to 57,148.57, 85,726.97 and 19,708.11 is: 29,563.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,148.57 : 85,726.97 = 19,708.11 : x
  2. Step 2: Convert to fraction form
    57,148.57/85,726.97 = 19,708.11/x
  3. Step 3: Cross multiply
    57,148.57x = 85,726.97 × 19,708.11
  4. Step 4: Simplify right side
    57,148.57x = 1,689,516,027.55
  5. Step 5: Solve for x
    x = 1,689,516,027.55/57,148.57
  6. Step 6: Final answer
    x = 29,563.57

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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.