Home / 49,939.35-68,918.37-28,718.61

Finding the Fourth Proportional to 49,939.35, 68,918.37 and 28,718.61

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Solution

The fourth proportional to 49,939.35, 68,918.37 and 28,718.61 is: 39,632.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,939.35 : 68,918.37 = 28,718.61 : x
  2. Step 2: Convert to fraction form
    49,939.35/68,918.37 = 28,718.61/x
  3. Step 3: Cross multiply
    49,939.35x = 68,918.37 × 28,718.61
  4. Step 4: Simplify right side
    49,939.35x = 1,979,239,989.08
  5. Step 5: Solve for x
    x = 1,979,239,989.08/49,939.35
  6. Step 6: Final answer
    x = 39,632.88

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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.