Home / 76,284.54-105,235.27-66,198.83

Finding the Fourth Proportional to 76,284.54, 105,235.27 and 66,198.83

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Solution

The fourth proportional to 76,284.54, 105,235.27 and 66,198.83 is: 91,321.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,284.54 : 105,235.27 = 66,198.83 : x
  2. Step 2: Convert to fraction form
    76,284.54/105,235.27 = 66,198.83/x
  3. Step 3: Cross multiply
    76,284.54x = 105,235.27 × 66,198.83
  4. Step 4: Simplify right side
    76,284.54x = 6,966,451,057.06
  5. Step 5: Solve for x
    x = 6,966,451,057.06/76,284.54
  6. Step 6: Final answer
    x = 91,321.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.