Home / 40,836.38-56,179.24-39,086.78

Finding the Fourth Proportional to 40,836.38, 56,179.24 and 39,086.78

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Solution

The fourth proportional to 40,836.38, 56,179.24 and 39,086.78 is: 53,772.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,836.38 : 56,179.24 = 39,086.78 : x
  2. Step 2: Convert to fraction form
    40,836.38/56,179.24 = 39,086.78/x
  3. Step 3: Cross multiply
    40,836.38x = 56,179.24 × 39,086.78
  4. Step 4: Simplify right side
    40,836.38x = 2,195,865,215.83
  5. Step 5: Solve for x
    x = 2,195,865,215.83/40,836.38
  6. Step 6: Final answer
    x = 53,772.29

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1.5x scale

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.