Home / 86,905.68-119,932.44-49,179.12

Finding the Fourth Proportional to 86,905.68, 119,932.44 and 49,179.12

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Solution

The fourth proportional to 86,905.68, 119,932.44 and 49,179.12 is: 67,868.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,905.68 : 119,932.44 = 49,179.12 : x
  2. Step 2: Convert to fraction form
    86,905.68/119,932.44 = 49,179.12/x
  3. Step 3: Cross multiply
    86,905.68x = 119,932.44 × 49,179.12
  4. Step 4: Simplify right side
    86,905.68x = 5,898,171,858.65
  5. Step 5: Solve for x
    x = 5,898,171,858.65/86,905.68
  6. Step 6: Final answer
    x = 67,868.66

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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.