Home / 76,704.25-115,057.82-21,301.69

Finding the Fourth Proportional to 76,704.25, 115,057.82 and 21,301.69

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Solution

The fourth proportional to 76,704.25, 115,057.82 and 21,301.69 is: 31,952.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,704.25 : 115,057.82 = 21,301.69 : x
  2. Step 2: Convert to fraction form
    76,704.25/115,057.82 = 21,301.69/x
  3. Step 3: Cross multiply
    76,704.25x = 115,057.82 × 21,301.69
  4. Step 4: Simplify right side
    76,704.25x = 2,450,925,907.21
  5. Step 5: Solve for x
    x = 2,450,925,907.21/76,704.25
  6. Step 6: Final answer
    x = 31,952.93

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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.