Home / 82,163.70-123,085.62-53,998.79

Finding the Fourth Proportional to 82,163.70, 123,085.62 and 53,998.79

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Solution

The fourth proportional to 82,163.70, 123,085.62 and 53,998.79 is: 80,893.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,163.70 : 123,085.62 = 53,998.79 : x
  2. Step 2: Convert to fraction form
    82,163.70/123,085.62 = 53,998.79/x
  3. Step 3: Cross multiply
    82,163.70x = 123,085.62 × 53,998.79
  4. Step 4: Simplify right side
    82,163.70x = 6,646,473,930.97
  5. Step 5: Solve for x
    x = 6,646,473,930.97/82,163.70
  6. Step 6: Final answer
    x = 80,893.07

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1.5x scale

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.