Home / 55,174.34-76,142.31-31,302.02

Finding the Fourth Proportional to 55,174.34, 76,142.31 and 31,302.02

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Solution

The fourth proportional to 55,174.34, 76,142.31 and 31,302.02 is: 43,197.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,174.34 : 76,142.31 = 31,302.02 : x
  2. Step 2: Convert to fraction form
    55,174.34/76,142.31 = 31,302.02/x
  3. Step 3: Cross multiply
    55,174.34x = 76,142.31 × 31,302.02
  4. Step 4: Simplify right side
    55,174.34x = 2,383,408,110.47
  5. Step 5: Solve for x
    x = 2,383,408,110.47/55,174.34
  6. Step 6: Final answer
    x = 43,197.76

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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.