Home / 72,581.28-108,871.88-22,665.65

Finding the Fourth Proportional to 72,581.28, 108,871.88 and 22,665.65

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Solution

The fourth proportional to 72,581.28, 108,871.88 and 22,665.65 is: 33,998.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,581.28 : 108,871.88 = 22,665.65 : x
  2. Step 2: Convert to fraction form
    72,581.28/108,871.88 = 22,665.65/x
  3. Step 3: Cross multiply
    72,581.28x = 108,871.88 × 22,665.65
  4. Step 4: Simplify right side
    72,581.28x = 2,467,652,367.98
  5. Step 5: Solve for x
    x = 2,467,652,367.98/72,581.28
  6. Step 6: Final answer
    x = 33,998.47

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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.