Home / 49,694.51-74,541.81-12,255.20

Finding the Fourth Proportional to 49,694.51, 74,541.81 and 12,255.20

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Solution

The fourth proportional to 49,694.51, 74,541.81 and 12,255.20 is: 18,382.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,694.51 : 74,541.81 = 12,255.20 : x
  2. Step 2: Convert to fraction form
    49,694.51/74,541.81 = 12,255.20/x
  3. Step 3: Cross multiply
    49,694.51x = 74,541.81 × 12,255.20
  4. Step 4: Simplify right side
    49,694.51x = 913,524,789.91
  5. Step 5: Solve for x
    x = 913,524,789.91/49,694.51
  6. Step 6: Final answer
    x = 18,382.81

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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.