Home / 76,120-114,187.20-26,198.08

Finding the Fourth Proportional to 76,120, 114,187.20 and 26,198.08

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Solution

The fourth proportional to 76,120, 114,187.20 and 26,198.08 is: 39,299.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,120 : 114,187.20 = 26,198.08 : x
  2. Step 2: Convert to fraction form
    76,120/114,187.20 = 26,198.08/x
  3. Step 3: Cross multiply
    76,120x = 114,187.20 × 26,198.08
  4. Step 4: Simplify right side
    76,120x = 2,991,485,400.58
  5. Step 5: Solve for x
    x = 2,991,485,400.58/76,120
  6. Step 6: Final answer
    x = 39,299.60

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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.