Home / 73,085.13-109,631.97-20,498.72

Finding the Fourth Proportional to 73,085.13, 109,631.97 and 20,498.72

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Solution

The fourth proportional to 73,085.13, 109,631.97 and 20,498.72 is: 30,749.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,085.13 : 109,631.97 = 20,498.72 : x
  2. Step 2: Convert to fraction form
    73,085.13/109,631.97 = 20,498.72/x
  3. Step 3: Cross multiply
    73,085.13x = 109,631.97 × 20,498.72
  4. Step 4: Simplify right side
    73,085.13x = 2,247,314,507.92
  5. Step 5: Solve for x
    x = 2,247,314,507.92/73,085.13
  6. Step 6: Final answer
    x = 30,749.27

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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.