Home / 86,891.39-119,920.22-52,919.78

Finding the Fourth Proportional to 86,891.39, 119,920.22 and 52,919.78

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Solution

The fourth proportional to 86,891.39, 119,920.22 and 52,919.78 is: 73,035.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,891.39 : 119,920.22 = 52,919.78 : x
  2. Step 2: Convert to fraction form
    86,891.39/119,920.22 = 52,919.78/x
  3. Step 3: Cross multiply
    86,891.39x = 119,920.22 × 52,919.78
  4. Step 4: Simplify right side
    86,891.39x = 6,346,150,795.75
  5. Step 5: Solve for x
    x = 6,346,150,795.75/86,891.39
  6. Step 6: Final answer
    x = 73,035.44

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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.