Home / 87,680.10-131,532.30-31,506.60

Finding the Fourth Proportional to 87,680.10, 131,532.30 and 31,506.60

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Solution

The fourth proportional to 87,680.10, 131,532.30 and 31,506.60 is: 47,264.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,680.10 : 131,532.30 = 31,506.60 : x
  2. Step 2: Convert to fraction form
    87,680.10/131,532.30 = 31,506.60/x
  3. Step 3: Cross multiply
    87,680.10x = 131,532.30 × 31,506.60
  4. Step 4: Simplify right side
    87,680.10x = 4,144,135,563.18
  5. Step 5: Solve for x
    x = 4,144,135,563.18/87,680.10
  6. Step 6: Final answer
    x = 47,264.27

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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.