Home / 71,733.28-107,605.68-21,817.84

Finding the Fourth Proportional to 71,733.28, 107,605.68 and 21,817.84

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Solution

The fourth proportional to 71,733.28, 107,605.68 and 21,817.84 is: 32,728.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,733.28 : 107,605.68 = 21,817.84 : x
  2. Step 2: Convert to fraction form
    71,733.28/107,605.68 = 21,817.84/x
  3. Step 3: Cross multiply
    71,733.28x = 107,605.68 × 21,817.84
  4. Step 4: Simplify right side
    71,733.28x = 2,347,723,509.33
  5. Step 5: Solve for x
    x = 2,347,723,509.33/71,733.28
  6. Step 6: Final answer
    x = 32,728.51

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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.