Home / 70,731.08-106,143.35-33,301.85

Finding the Fourth Proportional to 70,731.08, 106,143.35 and 33,301.85

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Solution

The fourth proportional to 70,731.08, 106,143.35 and 33,301.85 is: 49,974.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,731.08 : 106,143.35 = 33,301.85 : x
  2. Step 2: Convert to fraction form
    70,731.08/106,143.35 = 33,301.85/x
  3. Step 3: Cross multiply
    70,731.08x = 106,143.35 × 33,301.85
  4. Step 4: Simplify right side
    70,731.08x = 3,534,769,920.20
  5. Step 5: Solve for x
    x = 3,534,769,920.20/70,731.08
  6. Step 6: Final answer
    x = 49,974.78

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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.