Home / 67,317.74-100,997.12-31,806.33

Finding the Fourth Proportional to 67,317.74, 100,997.12 and 31,806.33

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Solution

The fourth proportional to 67,317.74, 100,997.12 and 31,806.33 is: 47,719.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,317.74 : 100,997.12 = 31,806.33 : x
  2. Step 2: Convert to fraction form
    67,317.74/100,997.12 = 31,806.33/x
  3. Step 3: Cross multiply
    67,317.74x = 100,997.12 × 31,806.33
  4. Step 4: Simplify right side
    67,317.74x = 3,212,347,996.66
  5. Step 5: Solve for x
    x = 3,212,347,996.66/67,317.74
  6. Step 6: Final answer
    x = 47,719.19

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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.