Home / 69,309.24-103,967.64-21,920.79

Finding the Fourth Proportional to 69,309.24, 103,967.64 and 21,920.79

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Solution

The fourth proportional to 69,309.24, 103,967.64 and 21,920.79 is: 32,882.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,309.24 : 103,967.64 = 21,920.79 : x
  2. Step 2: Convert to fraction form
    69,309.24/103,967.64 = 21,920.79/x
  3. Step 3: Cross multiply
    69,309.24x = 103,967.64 × 21,920.79
  4. Step 4: Simplify right side
    69,309.24x = 2,279,052,748.43
  5. Step 5: Solve for x
    x = 2,279,052,748.43/69,309.24
  6. Step 6: Final answer
    x = 32,882.38

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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.