Home / 76,976.40-115,378.08-50,373.36

Finding the Fourth Proportional to 76,976.40, 115,378.08 and 50,373.36

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Solution

The fourth proportional to 76,976.40, 115,378.08 and 50,373.36 is: 75,503.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,976.40 : 115,378.08 = 50,373.36 : x
  2. Step 2: Convert to fraction form
    76,976.40/115,378.08 = 50,373.36/x
  3. Step 3: Cross multiply
    76,976.40x = 115,378.08 × 50,373.36
  4. Step 4: Simplify right side
    76,976.40x = 5,811,981,559.95
  5. Step 5: Solve for x
    x = 5,811,981,559.95/76,976.40
  6. Step 6: Final answer
    x = 75,503.42

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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.