Home / 86,979.99-120,028.83-50,684.90

Finding the Fourth Proportional to 86,979.99, 120,028.83 and 50,684.90

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Solution

The fourth proportional to 86,979.99, 120,028.83 and 50,684.90 is: 69,943.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,979.99 : 120,028.83 = 50,684.90 : x
  2. Step 2: Convert to fraction form
    86,979.99/120,028.83 = 50,684.90/x
  3. Step 3: Cross multiply
    86,979.99x = 120,028.83 × 50,684.90
  4. Step 4: Simplify right side
    86,979.99x = 6,083,649,245.67
  5. Step 5: Solve for x
    x = 6,083,649,245.67/86,979.99
  6. Step 6: Final answer
    x = 69,943.09

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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.