Home / 53,660.27-80,490.33-20,380.27

Finding the Fourth Proportional to 53,660.27, 80,490.33 and 20,380.27

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Solution

The fourth proportional to 53,660.27, 80,490.33 and 20,380.27 is: 30,570.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,660.27 : 80,490.33 = 20,380.27 : x
  2. Step 2: Convert to fraction form
    53,660.27/80,490.33 = 20,380.27/x
  3. Step 3: Cross multiply
    53,660.27x = 80,490.33 × 20,380.27
  4. Step 4: Simplify right side
    53,660.27x = 1,640,414,708.74
  5. Step 5: Solve for x
    x = 1,640,414,708.74/53,660.27
  6. Step 6: Final answer
    x = 30,570.38

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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.