Home / 79,200.14-118,800.68-20,035.78

Finding the Fourth Proportional to 79,200.14, 118,800.68 and 20,035.78

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Solution

The fourth proportional to 79,200.14, 118,800.68 and 20,035.78 is: 30,053.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,200.14 : 118,800.68 = 20,035.78 : x
  2. Step 2: Convert to fraction form
    79,200.14/118,800.68 = 20,035.78/x
  3. Step 3: Cross multiply
    79,200.14x = 118,800.68 × 20,035.78
  4. Step 4: Simplify right side
    79,200.14x = 2,380,263,891.15
  5. Step 5: Solve for x
    x = 2,380,263,891.15/79,200.14
  6. Step 6: Final answer
    x = 30,053.79

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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.