Home / 67,211.38-100,823.34-19,826.51

Finding the Fourth Proportional to 67,211.38, 100,823.34 and 19,826.51

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Solution

The fourth proportional to 67,211.38, 100,823.34 and 19,826.51 is: 29,741.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,211.38 : 100,823.34 = 19,826.51 : x
  2. Step 2: Convert to fraction form
    67,211.38/100,823.34 = 19,826.51/x
  3. Step 3: Cross multiply
    67,211.38x = 100,823.34 × 19,826.51
  4. Step 4: Simplify right side
    67,211.38x = 1,998,974,958.74
  5. Step 5: Solve for x
    x = 1,998,974,958.74/67,211.38
  6. Step 6: Final answer
    x = 29,741.61

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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.