Home / 73,081.18-109,633.20-30,961.36

Finding the Fourth Proportional to 73,081.18, 109,633.20 and 30,961.36

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Solution

The fourth proportional to 73,081.18, 109,633.20 and 30,961.36 is: 46,446.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,081.18 : 109,633.20 = 30,961.36 : x
  2. Step 2: Convert to fraction form
    73,081.18/109,633.20 = 30,961.36/x
  3. Step 3: Cross multiply
    73,081.18x = 109,633.20 × 30,961.36
  4. Step 4: Simplify right side
    73,081.18x = 3,394,392,973.15
  5. Step 5: Solve for x
    x = 3,394,392,973.15/73,081.18
  6. Step 6: Final answer
    x = 46,446.88

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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.