Home / 77,836.82-107,400.55-43,838.04

Finding the Fourth Proportional to 77,836.82, 107,400.55 and 43,838.04

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Solution

The fourth proportional to 77,836.82, 107,400.55 and 43,838.04 is: 60,488.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,836.82 : 107,400.55 = 43,838.04 : x
  2. Step 2: Convert to fraction form
    77,836.82/107,400.55 = 43,838.04/x
  3. Step 3: Cross multiply
    77,836.82x = 107,400.55 × 43,838.04
  4. Step 4: Simplify right side
    77,836.82x = 4,708,228,891.14
  5. Step 5: Solve for x
    x = 4,708,228,891.14/77,836.82
  6. Step 6: Final answer
    x = 60,488.45

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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.