Home / 73,138.36-109,676.52-28,758.04

Finding the Fourth Proportional to 73,138.36, 109,676.52 and 28,758.04

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Solution

The fourth proportional to 73,138.36, 109,676.52 and 28,758.04 is: 43,124.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,138.36 : 109,676.52 = 28,758.04 : x
  2. Step 2: Convert to fraction form
    73,138.36/109,676.52 = 28,758.04/x
  3. Step 3: Cross multiply
    73,138.36x = 109,676.52 × 28,758.04
  4. Step 4: Simplify right side
    73,138.36x = 3,154,081,749.22
  5. Step 5: Solve for x
    x = 3,154,081,749.22/73,138.36
  6. Step 6: Final answer
    x = 43,124.86

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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.