Home / 76,778.96-115,184.83-26,860.68

Finding the Fourth Proportional to 76,778.96, 115,184.83 and 26,860.68

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Solution

The fourth proportional to 76,778.96, 115,184.83 and 26,860.68 is: 40,296.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,778.96 : 115,184.83 = 26,860.68 : x
  2. Step 2: Convert to fraction form
    76,778.96/115,184.83 = 26,860.68/x
  3. Step 3: Cross multiply
    76,778.96x = 115,184.83 × 26,860.68
  4. Step 4: Simplify right side
    76,778.96x = 3,093,942,859.48
  5. Step 5: Solve for x
    x = 3,093,942,859.48/76,778.96
  6. Step 6: Final answer
    x = 40,296.76

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1.5x scale

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.