Home / 57,278.43-79,044.72-31,786.51

Finding the Fourth Proportional to 57,278.43, 79,044.72 and 31,786.51

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Solution

The fourth proportional to 57,278.43, 79,044.72 and 31,786.51 is: 43,865.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,278.43 : 79,044.72 = 31,786.51 : x
  2. Step 2: Convert to fraction form
    57,278.43/79,044.72 = 31,786.51/x
  3. Step 3: Cross multiply
    57,278.43x = 79,044.72 × 31,786.51
  4. Step 4: Simplify right side
    57,278.43x = 2,512,555,782.73
  5. Step 5: Solve for x
    x = 2,512,555,782.73/57,278.43
  6. Step 6: Final answer
    x = 43,865.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.