Home / 87,433.10-131,246.85-54,190.70

Finding the Fourth Proportional to 87,433.10, 131,246.85 and 54,190.70

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Solution

The fourth proportional to 87,433.10, 131,246.85 and 54,190.70 is: 81,346.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,433.10 : 131,246.85 = 54,190.70 : x
  2. Step 2: Convert to fraction form
    87,433.10/131,246.85 = 54,190.70/x
  3. Step 3: Cross multiply
    87,433.10x = 131,246.85 × 54,190.70
  4. Step 4: Simplify right side
    87,433.10x = 7,112,358,674.30
  5. Step 5: Solve for x
    x = 7,112,358,674.30/87,433.10
  6. Step 6: Final answer
    x = 81,346.29

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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.