Home / 79,865.69-119,872.31-40,450.48

Finding the Fourth Proportional to 79,865.69, 119,872.31 and 40,450.48

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Solution

The fourth proportional to 79,865.69, 119,872.31 and 40,450.48 is: 60,713.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,865.69 : 119,872.31 = 40,450.48 : x
  2. Step 2: Convert to fraction form
    79,865.69/119,872.31 = 40,450.48/x
  3. Step 3: Cross multiply
    79,865.69x = 119,872.31 × 40,450.48
  4. Step 4: Simplify right side
    79,865.69x = 4,848,891,976.28
  5. Step 5: Solve for x
    x = 4,848,891,976.28/79,865.69
  6. Step 6: Final answer
    x = 60,713.08

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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.