Home / 51,253.20-76,879.80-31,467.60

Finding the Fourth Proportional to 51,253.20, 76,879.80 and 31,467.60

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Solution

The fourth proportional to 51,253.20, 76,879.80 and 31,467.60 is: 47,201.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,253.20 : 76,879.80 = 31,467.60 : x
  2. Step 2: Convert to fraction form
    51,253.20/76,879.80 = 31,467.60/x
  3. Step 3: Cross multiply
    51,253.20x = 76,879.80 × 31,467.60
  4. Step 4: Simplify right side
    51,253.20x = 2,419,222,794.48
  5. Step 5: Solve for x
    x = 2,419,222,794.48/51,253.20
  6. Step 6: Final answer
    x = 47,201.40

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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.