Home / 276,081.36-414,131.30-76,385.03

Finding the Fourth Proportional to 276,081.36, 414,131.30 and 76,385.03

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Solution

The fourth proportional to 276,081.36, 414,131.30 and 76,385.03 is: 114,580.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,081.36 : 414,131.30 = 76,385.03 : x
  2. Step 2: Convert to fraction form
    276,081.36/414,131.30 = 76,385.03/x
  3. Step 3: Cross multiply
    276,081.36x = 414,131.30 × 76,385.03
  4. Step 4: Simplify right side
    276,081.36x = 31,633,429,321.86
  5. Step 5: Solve for x
    x = 31,633,429,321.86/276,081.36
  6. Step 6: Final answer
    x = 114,580.10

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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.