Home / 87,511.10-131,397.89-50,113.40

Finding the Fourth Proportional to 87,511.10, 131,397.89 and 50,113.40

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Solution

The fourth proportional to 87,511.10, 131,397.89 and 50,113.40 is: 75,245.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,511.10 : 131,397.89 = 50,113.40 : x
  2. Step 2: Convert to fraction form
    87,511.10/131,397.89 = 50,113.40/x
  3. Step 3: Cross multiply
    87,511.10x = 131,397.89 × 50,113.40
  4. Step 4: Simplify right side
    87,511.10x = 6,584,794,113.17
  5. Step 5: Solve for x
    x = 6,584,794,113.17/87,511.10
  6. Step 6: Final answer
    x = 75,245.25

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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.