Home / 87,201.01-120,306.36-57,003.67

Finding the Fourth Proportional to 87,201.01, 120,306.36 and 57,003.67

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Solution

The fourth proportional to 87,201.01, 120,306.36 and 57,003.67 is: 78,644.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,201.01 : 120,306.36 = 57,003.67 : x
  2. Step 2: Convert to fraction form
    87,201.01/120,306.36 = 57,003.67/x
  3. Step 3: Cross multiply
    87,201.01x = 120,306.36 × 57,003.67
  4. Step 4: Simplify right side
    87,201.01x = 6,857,904,044.34
  5. Step 5: Solve for x
    x = 6,857,904,044.34/87,201.01
  6. Step 6: Final answer
    x = 78,644.78

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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.