Home / 87,072.50-120,171.39-51,265.82

Finding the Fourth Proportional to 87,072.50, 120,171.39 and 51,265.82

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Solution

The fourth proportional to 87,072.50, 120,171.39 and 51,265.82 is: 70,753.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,072.50 : 120,171.39 = 51,265.82 : x
  2. Step 2: Convert to fraction form
    87,072.50/120,171.39 = 51,265.82/x
  3. Step 3: Cross multiply
    87,072.50x = 120,171.39 × 51,265.82
  4. Step 4: Simplify right side
    87,072.50x = 6,160,684,848.89
  5. Step 5: Solve for x
    x = 6,160,684,848.89/87,072.50
  6. Step 6: Final answer
    x = 70,753.51

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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.