Home / 49,426.41-74,139.60-11,986.48

Finding the Fourth Proportional to 49,426.41, 74,139.60 and 11,986.48

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Solution

The fourth proportional to 49,426.41, 74,139.60 and 11,986.48 is: 17,979.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,426.41 : 74,139.60 = 11,986.48 : x
  2. Step 2: Convert to fraction form
    49,426.41/74,139.60 = 11,986.48/x
  3. Step 3: Cross multiply
    49,426.41x = 74,139.60 × 11,986.48
  4. Step 4: Simplify right side
    49,426.41x = 888,672,787.66
  5. Step 5: Solve for x
    x = 888,672,787.66/49,426.41
  6. Step 6: Final answer
    x = 17,979.71

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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.