Home / 76,935.20-115,489.20-41,856.80

Finding the Fourth Proportional to 76,935.20, 115,489.20 and 41,856.80

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Solution

The fourth proportional to 76,935.20, 115,489.20 and 41,856.80 is: 62,832.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,935.20 : 115,489.20 = 41,856.80 : x
  2. Step 2: Convert to fraction form
    76,935.20/115,489.20 = 41,856.80/x
  3. Step 3: Cross multiply
    76,935.20x = 115,489.20 × 41,856.80
  4. Step 4: Simplify right side
    76,935.20x = 4,834,008,346.56
  5. Step 5: Solve for x
    x = 4,834,008,346.56/76,935.20
  6. Step 6: Final answer
    x = 62,832.21

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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.