Home / 77,299.82-115,964.30-29,282.80

Finding the Fourth Proportional to 77,299.82, 115,964.30 and 29,282.80

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Solution

The fourth proportional to 77,299.82, 115,964.30 and 29,282.80 is: 43,929.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,299.82 : 115,964.30 = 29,282.80 : x
  2. Step 2: Convert to fraction form
    77,299.82/115,964.30 = 29,282.80/x
  3. Step 3: Cross multiply
    77,299.82x = 115,964.30 × 29,282.80
  4. Step 4: Simplify right side
    77,299.82x = 3,395,758,677.80
  5. Step 5: Solve for x
    x = 3,395,758,677.80/77,299.82
  6. Step 6: Final answer
    x = 43,929.71

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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.