Home / 52,077.25-78,115.91-12,634.37

Finding the Fourth Proportional to 52,077.25, 78,115.91 and 12,634.37

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Solution

The fourth proportional to 52,077.25, 78,115.91 and 12,634.37 is: 18,951.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,077.25 : 78,115.91 = 12,634.37 : x
  2. Step 2: Convert to fraction form
    52,077.25/78,115.91 = 12,634.37/x
  3. Step 3: Cross multiply
    52,077.25x = 78,115.91 × 12,634.37
  4. Step 4: Simplify right side
    52,077.25x = 986,945,309.83
  5. Step 5: Solve for x
    x = 986,945,309.83/52,077.25
  6. Step 6: Final answer
    x = 18,951.56

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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.