Home / 45,432.24-68,161.86-20,479.92

Finding the Fourth Proportional to 45,432.24, 68,161.86 and 20,479.92

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Solution

The fourth proportional to 45,432.24, 68,161.86 and 20,479.92 is: 30,725.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,432.24 : 68,161.86 = 20,479.92 : x
  2. Step 2: Convert to fraction form
    45,432.24/68,161.86 = 20,479.92/x
  3. Step 3: Cross multiply
    45,432.24x = 68,161.86 × 20,479.92
  4. Step 4: Simplify right side
    45,432.24x = 1,395,949,439.85
  5. Step 5: Solve for x
    x = 1,395,949,439.85/45,432.24
  6. Step 6: Final answer
    x = 30,725.97

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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.