Home / 54,168.26-81,257.80-20,425.74

Finding the Fourth Proportional to 54,168.26, 81,257.80 and 20,425.74

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Solution

The fourth proportional to 54,168.26, 81,257.80 and 20,425.74 is: 30,640.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,168.26 : 81,257.80 = 20,425.74 : x
  2. Step 2: Convert to fraction form
    54,168.26/81,257.80 = 20,425.74/x
  3. Step 3: Cross multiply
    54,168.26x = 81,257.80 × 20,425.74
  4. Step 4: Simplify right side
    54,168.26x = 1,659,750,695.77
  5. Step 5: Solve for x
    x = 1,659,750,695.77/54,168.26
  6. Step 6: Final answer
    x = 30,640.65

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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.