Home / 49,896.76-68,872.79-30,782.48

Finding the Fourth Proportional to 49,896.76, 68,872.79 and 30,782.48

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Solution

The fourth proportional to 49,896.76, 68,872.79 and 30,782.48 is: 42,489.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,896.76 : 68,872.79 = 30,782.48 : x
  2. Step 2: Convert to fraction form
    49,896.76/68,872.79 = 30,782.48/x
  3. Step 3: Cross multiply
    49,896.76x = 68,872.79 × 30,782.48
  4. Step 4: Simplify right side
    49,896.76x = 2,120,074,782.44
  5. Step 5: Solve for x
    x = 2,120,074,782.44/49,896.76
  6. Step 6: Final answer
    x = 42,489.23

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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.