Home / 77,919.33-107,538-43,934.31

Finding the Fourth Proportional to 77,919.33, 107,538 and 43,934.31

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Solution

The fourth proportional to 77,919.33, 107,538 and 43,934.31 is: 60,634.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,919.33 : 107,538 = 43,934.31 : x
  2. Step 2: Convert to fraction form
    77,919.33/107,538 = 43,934.31/x
  3. Step 3: Cross multiply
    77,919.33x = 107,538 × 43,934.31
  4. Step 4: Simplify right side
    77,919.33x = 4,724,607,828.78
  5. Step 5: Solve for x
    x = 4,724,607,828.78/77,919.33
  6. Step 6: Final answer
    x = 60,634.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.