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Finding the Fourth Proportional to 57,640, 79,575.84 and 37,514.56

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Solution

The fourth proportional to 57,640, 79,575.84 and 37,514.56 is: 51,791.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,640 : 79,575.84 = 37,514.56 : x
  2. Step 2: Convert to fraction form
    57,640/79,575.84 = 37,514.56/x
  3. Step 3: Cross multiply
    57,640x = 79,575.84 × 37,514.56
  4. Step 4: Simplify right side
    57,640x = 2,985,252,624.23
  5. Step 5: Solve for x
    x = 2,985,252,624.23/57,640
  6. Step 6: Final answer
    x = 51,791.34

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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.