Home / 76,961.35-115,233.49-39,947.59

Finding the Fourth Proportional to 76,961.35, 115,233.49 and 39,947.59

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Solution

The fourth proportional to 76,961.35, 115,233.49 and 39,947.59 is: 59,813.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,961.35 : 115,233.49 = 39,947.59 : x
  2. Step 2: Convert to fraction form
    76,961.35/115,233.49 = 39,947.59/x
  3. Step 3: Cross multiply
    76,961.35x = 115,233.49 × 39,947.59
  4. Step 4: Simplify right side
    76,961.35x = 4,603,300,212.79
  5. Step 5: Solve for x
    x = 4,603,300,212.79/76,961.35
  6. Step 6: Final answer
    x = 59,813.14

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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.