Home / 276,411.68-414,619.83-76,747.64

Finding the Fourth Proportional to 276,411.68, 414,619.83 and 76,747.64

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Solution

The fourth proportional to 276,411.68, 414,619.83 and 76,747.64 is: 115,122.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,411.68 : 414,619.83 = 76,747.64 : x
  2. Step 2: Convert to fraction form
    276,411.68/414,619.83 = 76,747.64/x
  3. Step 3: Cross multiply
    276,411.68x = 414,619.83 × 76,747.64
  4. Step 4: Simplify right side
    276,411.68x = 31,821,093,996.64
  5. Step 5: Solve for x
    x = 31,821,093,996.64/276,411.68
  6. Step 6: Final answer
    x = 115,122.10

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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.