Home / 77,366.90-115,853.40-50,991.68

Finding the Fourth Proportional to 77,366.90, 115,853.40 and 50,991.68

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Solution

The fourth proportional to 77,366.90, 115,853.40 and 50,991.68 is: 76,357.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,366.90 : 115,853.40 = 50,991.68 : x
  2. Step 2: Convert to fraction form
    77,366.90/115,853.40 = 50,991.68/x
  3. Step 3: Cross multiply
    77,366.90x = 115,853.40 × 50,991.68
  4. Step 4: Simplify right side
    77,366.90x = 5,907,558,920.45
  5. Step 5: Solve for x
    x = 5,907,558,920.45/77,366.90
  6. Step 6: Final answer
    x = 76,357.71

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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.