Home / 319,733.82-479,589.75-83,078.55

Finding the Fourth Proportional to 319,733.82, 479,589.75 and 83,078.55

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Solution

The fourth proportional to 319,733.82, 479,589.75 and 83,078.55 is: 124,614.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,733.82 : 479,589.75 = 83,078.55 : x
  2. Step 2: Convert to fraction form
    319,733.82/479,589.75 = 83,078.55/x
  3. Step 3: Cross multiply
    319,733.82x = 479,589.75 × 83,078.55
  4. Step 4: Simplify right side
    319,733.82x = 39,843,621,024.86
  5. Step 5: Solve for x
    x = 39,843,621,024.86/319,733.82
  6. Step 6: Final answer
    x = 124,614.97

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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.