Home / 73,131.20-109,623.90-33,619.40

Finding the Fourth Proportional to 73,131.20, 109,623.90 and 33,619.40

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Solution

The fourth proportional to 73,131.20, 109,623.90 and 33,619.40 is: 50,395.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,131.20 : 109,623.90 = 33,619.40 : x
  2. Step 2: Convert to fraction form
    73,131.20/109,623.90 = 33,619.40/x
  3. Step 3: Cross multiply
    73,131.20x = 109,623.90 × 33,619.40
  4. Step 4: Simplify right side
    73,131.20x = 3,685,489,743.66
  5. Step 5: Solve for x
    x = 3,685,489,743.66/73,131.20
  6. Step 6: Final answer
    x = 50,395.59

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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.