Home / 82,143.14-113,375.22-51,909.26

Finding the Fourth Proportional to 82,143.14, 113,375.22 and 51,909.26

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Solution

The fourth proportional to 82,143.14, 113,375.22 and 51,909.26 is: 71,645.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,143.14 : 113,375.22 = 51,909.26 : x
  2. Step 2: Convert to fraction form
    82,143.14/113,375.22 = 51,909.26/x
  3. Step 3: Cross multiply
    82,143.14x = 113,375.22 × 51,909.26
  4. Step 4: Simplify right side
    82,143.14x = 5,885,223,772.54
  5. Step 5: Solve for x
    x = 5,885,223,772.54/82,143.14
  6. Step 6: Final answer
    x = 71,645.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.