Home / 53,843.40-80,676.24-31,290.78

Finding the Fourth Proportional to 53,843.40, 80,676.24 and 31,290.78

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Solution

The fourth proportional to 53,843.40, 80,676.24 and 31,290.78 is: 46,884.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,843.40 : 80,676.24 = 31,290.78 : x
  2. Step 2: Convert to fraction form
    53,843.40/80,676.24 = 31,290.78/x
  3. Step 3: Cross multiply
    53,843.40x = 80,676.24 × 31,290.78
  4. Step 4: Simplify right side
    53,843.40x = 2,524,422,477.07
  5. Step 5: Solve for x
    x = 2,524,422,477.07/53,843.40
  6. Step 6: Final answer
    x = 46,884.53

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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.