Home / 82,965.96-124,449.39-20,636.46

Finding the Fourth Proportional to 82,965.96, 124,449.39 and 20,636.46

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Solution

The fourth proportional to 82,965.96, 124,449.39 and 20,636.46 is: 30,954.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,965.96 : 124,449.39 = 20,636.46 : x
  2. Step 2: Convert to fraction form
    82,965.96/124,449.39 = 20,636.46/x
  3. Step 3: Cross multiply
    82,965.96x = 124,449.39 × 20,636.46
  4. Step 4: Simplify right side
    82,965.96x = 2,568,194,858.76
  5. Step 5: Solve for x
    x = 2,568,194,858.76/82,965.96
  6. Step 6: Final answer
    x = 30,954.80

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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.