Home / 66,826.32-100,204.92-20,073.12

Finding the Fourth Proportional to 66,826.32, 100,204.92 and 20,073.12

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Solution

The fourth proportional to 66,826.32, 100,204.92 and 20,073.12 is: 30,099.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,826.32 : 100,204.92 = 20,073.12 : x
  2. Step 2: Convert to fraction form
    66,826.32/100,204.92 = 20,073.12/x
  3. Step 3: Cross multiply
    66,826.32x = 100,204.92 × 20,073.12
  4. Step 4: Simplify right side
    66,826.32x = 2,011,425,383.75
  5. Step 5: Solve for x
    x = 2,011,425,383.75/66,826.32
  6. Step 6: Final answer
    x = 30,099.30

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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.