Home / 87,636.60-131,257.83-61,458.21

Finding the Fourth Proportional to 87,636.60, 131,257.83 and 61,458.21

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Solution

The fourth proportional to 87,636.60, 131,257.83 and 61,458.21 is: 92,049.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,636.60 : 131,257.83 = 61,458.21 : x
  2. Step 2: Convert to fraction form
    87,636.60/131,257.83 = 61,458.21/x
  3. Step 3: Cross multiply
    87,636.60x = 131,257.83 × 61,458.21
  4. Step 4: Simplify right side
    87,636.60x = 8,066,871,280.28
  5. Step 5: Solve for x
    x = 8,066,871,280.28/87,636.60
  6. Step 6: Final answer
    x = 92,049.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.