Home / 80,375.68-120,538.89-55,575.10

Finding the Fourth Proportional to 80,375.68, 120,538.89 and 55,575.10

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Solution

The fourth proportional to 80,375.68, 120,538.89 and 55,575.10 is: 83,345.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,375.68 : 120,538.89 = 55,575.10 : x
  2. Step 2: Convert to fraction form
    80,375.68/120,538.89 = 55,575.10/x
  3. Step 3: Cross multiply
    80,375.68x = 120,538.89 × 55,575.10
  4. Step 4: Simplify right side
    80,375.68x = 6,698,960,054.54
  5. Step 5: Solve for x
    x = 6,698,960,054.54/80,375.68
  6. Step 6: Final answer
    x = 83,345.61

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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.