Home / 45,921.21-68,873.72-12,633.26

Finding the Fourth Proportional to 45,921.21, 68,873.72 and 12,633.26

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Solution

The fourth proportional to 45,921.21, 68,873.72 and 12,633.26 is: 18,947.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,921.21 : 68,873.72 = 12,633.26 : x
  2. Step 2: Convert to fraction form
    45,921.21/68,873.72 = 12,633.26/x
  3. Step 3: Cross multiply
    45,921.21x = 68,873.72 × 12,633.26
  4. Step 4: Simplify right side
    45,921.21x = 870,099,204.39
  5. Step 5: Solve for x
    x = 870,099,204.39/45,921.21
  6. Step 6: Final answer
    x = 18,947.65

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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.