Home / 83,451.75-115,163.42-45,725.19

Finding the Fourth Proportional to 83,451.75, 115,163.42 and 45,725.19

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Solution

The fourth proportional to 83,451.75, 115,163.42 and 45,725.19 is: 63,100.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,451.75 : 115,163.42 = 45,725.19 : x
  2. Step 2: Convert to fraction form
    83,451.75/115,163.42 = 45,725.19/x
  3. Step 3: Cross multiply
    83,451.75x = 115,163.42 × 45,725.19
  4. Step 4: Simplify right side
    83,451.75x = 5,265,869,031.92
  5. Step 5: Solve for x
    x = 5,265,869,031.92/83,451.75
  6. Step 6: Final answer
    x = 63,100.76

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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.