Home / 73,132.14-109,698.21-20,543.43

Finding the Fourth Proportional to 73,132.14, 109,698.21 and 20,543.43

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Solution

The fourth proportional to 73,132.14, 109,698.21 and 20,543.43 is: 30,815.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,132.14 : 109,698.21 = 20,543.43 : x
  2. Step 2: Convert to fraction form
    73,132.14/109,698.21 = 20,543.43/x
  3. Step 3: Cross multiply
    73,132.14x = 109,698.21 × 20,543.43
  4. Step 4: Simplify right side
    73,132.14x = 2,253,577,498.26
  5. Step 5: Solve for x
    x = 2,253,577,498.26/73,132.14
  6. Step 6: Final answer
    x = 30,815.15

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Similar ratio
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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.