Home / 51,789.74-71,469.13-29,128.72

Finding the Fourth Proportional to 51,789.74, 71,469.13 and 29,128.72

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Solution

The fourth proportional to 51,789.74, 71,469.13 and 29,128.72 is: 40,197.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,789.74 : 71,469.13 = 29,128.72 : x
  2. Step 2: Convert to fraction form
    51,789.74/71,469.13 = 29,128.72/x
  3. Step 3: Cross multiply
    51,789.74x = 71,469.13 × 29,128.72
  4. Step 4: Simplify right side
    51,789.74x = 2,081,804,335.48
  5. Step 5: Solve for x
    x = 2,081,804,335.48/51,789.74
  6. Step 6: Final answer
    x = 40,197.24

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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.