Home / 49,835.27-68,745.75-30,719.21

Finding the Fourth Proportional to 49,835.27, 68,745.75 and 30,719.21

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Solution

The fourth proportional to 49,835.27, 68,745.75 and 30,719.21 is: 42,375.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,835.27 : 68,745.75 = 30,719.21 : x
  2. Step 2: Convert to fraction form
    49,835.27/68,745.75 = 30,719.21/x
  3. Step 3: Cross multiply
    49,835.27x = 68,745.75 × 30,719.21
  4. Step 4: Simplify right side
    49,835.27x = 2,111,814,787.13
  5. Step 5: Solve for x
    x = 2,111,814,787.13/49,835.27
  6. Step 6: Final answer
    x = 42,375.91

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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.