Home / 276,078.30-414,126.65-76,381.97

Finding the Fourth Proportional to 276,078.30, 414,126.65 and 76,381.97

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Solution

The fourth proportional to 276,078.30, 414,126.65 and 76,381.97 is: 114,575.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,078.30 : 414,126.65 = 76,381.97 : x
  2. Step 2: Convert to fraction form
    276,078.30/414,126.65 = 76,381.97/x
  3. Step 3: Cross multiply
    276,078.30x = 414,126.65 × 76,381.97
  4. Step 4: Simplify right side
    276,078.30x = 31,631,806,903.96
  5. Step 5: Solve for x
    x = 31,631,806,903.96/276,078.30
  6. Step 6: Final answer
    x = 114,575.49

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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.