Home / 87,302.46-120,474.20-53,367.78

Finding the Fourth Proportional to 87,302.46, 120,474.20 and 53,367.78

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Solution

The fourth proportional to 87,302.46, 120,474.20 and 53,367.78 is: 73,645.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,302.46 : 120,474.20 = 53,367.78 : x
  2. Step 2: Convert to fraction form
    87,302.46/120,474.20 = 53,367.78/x
  3. Step 3: Cross multiply
    87,302.46x = 120,474.20 × 53,367.78
  4. Step 4: Simplify right side
    87,302.46x = 6,429,440,601.28
  5. Step 5: Solve for x
    x = 6,429,440,601.28/87,302.46
  6. Step 6: Final answer
    x = 73,645.58

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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.