Home / 73,161.03-109,719.90-31,040.58

Finding the Fourth Proportional to 73,161.03, 109,719.90 and 31,040.58

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Solution

The fourth proportional to 73,161.03, 109,719.90 and 31,040.58 is: 46,551.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,161.03 : 109,719.90 = 31,040.58 : x
  2. Step 2: Convert to fraction form
    73,161.03/109,719.90 = 31,040.58/x
  3. Step 3: Cross multiply
    73,161.03x = 109,719.90 × 31,040.58
  4. Step 4: Simplify right side
    73,161.03x = 3,405,769,333.54
  5. Step 5: Solve for x
    x = 3,405,769,333.54/73,161.03
  6. Step 6: Final answer
    x = 46,551.69

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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.