Home / 45,149.94-67,759.47-20,180.34

Finding the Fourth Proportional to 45,149.94, 67,759.47 and 20,180.34

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Solution

The fourth proportional to 45,149.94, 67,759.47 and 20,180.34 is: 30,285.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,149.94 : 67,759.47 = 20,180.34 : x
  2. Step 2: Convert to fraction form
    45,149.94/67,759.47 = 20,180.34/x
  3. Step 3: Cross multiply
    45,149.94x = 67,759.47 × 20,180.34
  4. Step 4: Simplify right side
    45,149.94x = 1,367,409,142.82
  5. Step 5: Solve for x
    x = 1,367,409,142.82/45,149.94
  6. Step 6: Final answer
    x = 30,285.96

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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.