Home / 76,608.91-115,021.05-39,195.82

Finding the Fourth Proportional to 76,608.91, 115,021.05 and 39,195.82

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Solution

The fourth proportional to 76,608.91, 115,021.05 and 39,195.82 is: 58,848.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,608.91 : 115,021.05 = 39,195.82 : x
  2. Step 2: Convert to fraction form
    76,608.91/115,021.05 = 39,195.82/x
  3. Step 3: Cross multiply
    76,608.91x = 115,021.05 × 39,195.82
  4. Step 4: Simplify right side
    76,608.91x = 4,508,344,368.80
  5. Step 5: Solve for x
    x = 4,508,344,368.80/76,608.91
  6. Step 6: Final answer
    x = 58,848.82

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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.