Home / 270,600.12-405,785.93-81,087.46

Finding the Fourth Proportional to 270,600.12, 405,785.93 and 81,087.46

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Solution

The fourth proportional to 270,600.12, 405,785.93 and 81,087.46 is: 121,596.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,600.12 : 405,785.93 = 81,087.46 : x
  2. Step 2: Convert to fraction form
    270,600.12/405,785.93 = 81,087.46/x
  3. Step 3: Cross multiply
    270,600.12x = 405,785.93 × 81,087.46
  4. Step 4: Simplify right side
    270,600.12x = 32,904,150,367.44
  5. Step 5: Solve for x
    x = 32,904,150,367.44/270,600.12
  6. Step 6: Final answer
    x = 121,596.95

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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.