Home / 67,318.74-100,998.62-31,807.33

Finding the Fourth Proportional to 67,318.74, 100,998.62 and 31,807.33

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Solution

The fourth proportional to 67,318.74, 100,998.62 and 31,807.33 is: 47,720.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,318.74 : 100,998.62 = 31,807.33 : x
  2. Step 2: Convert to fraction form
    67,318.74/100,998.62 = 31,807.33/x
  3. Step 3: Cross multiply
    67,318.74x = 100,998.62 × 31,807.33
  4. Step 4: Simplify right side
    67,318.74x = 3,212,496,435.88
  5. Step 5: Solve for x
    x = 3,212,496,435.88/67,318.74
  6. Step 6: Final answer
    x = 47,720.69

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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.