Home / 71,772.24-107,663.88-21,856.56

Finding the Fourth Proportional to 71,772.24, 107,663.88 and 21,856.56

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Solution

The fourth proportional to 71,772.24, 107,663.88 and 21,856.56 is: 32,786.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,772.24 : 107,663.88 = 21,856.56 : x
  2. Step 2: Convert to fraction form
    71,772.24/107,663.88 = 21,856.56/x
  3. Step 3: Cross multiply
    71,772.24x = 107,663.88 × 21,856.56
  4. Step 4: Simplify right side
    71,772.24x = 2,353,162,053.05
  5. Step 5: Solve for x
    x = 2,353,162,053.05/71,772.24
  6. Step 6: Final answer
    x = 32,786.52

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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.