Home / 81,995.26-123,028.62-28,725.45

Finding the Fourth Proportional to 81,995.26, 123,028.62 and 28,725.45

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Solution

The fourth proportional to 81,995.26, 123,028.62 and 28,725.45 is: 43,100.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,995.26 : 123,028.62 = 28,725.45 : x
  2. Step 2: Convert to fraction form
    81,995.26/123,028.62 = 28,725.45/x
  3. Step 3: Cross multiply
    81,995.26x = 123,028.62 × 28,725.45
  4. Step 4: Simplify right side
    81,995.26x = 3,534,052,472.38
  5. Step 5: Solve for x
    x = 3,534,052,472.38/81,995.26
  6. Step 6: Final answer
    x = 43,100.69

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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.