Home / 80,622.58-120,933.48-20,650.94

Finding the Fourth Proportional to 80,622.58, 120,933.48 and 20,650.94

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Solution

The fourth proportional to 80,622.58, 120,933.48 and 20,650.94 is: 30,976.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,622.58 : 120,933.48 = 20,650.94 : x
  2. Step 2: Convert to fraction form
    80,622.58/120,933.48 = 20,650.94/x
  3. Step 3: Cross multiply
    80,622.58x = 120,933.48 × 20,650.94
  4. Step 4: Simplify right side
    80,622.58x = 2,497,390,039.47
  5. Step 5: Solve for x
    x = 2,497,390,039.47/80,622.58
  6. Step 6: Final answer
    x = 30,976.31

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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.