Home / 87,615.50-131,516.82-37,720.34

Finding the Fourth Proportional to 87,615.50, 131,516.82 and 37,720.34

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Solution

The fourth proportional to 87,615.50, 131,516.82 and 37,720.34 is: 56,620.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,615.50 : 131,516.82 = 37,720.34 : x
  2. Step 2: Convert to fraction form
    87,615.50/131,516.82 = 37,720.34/x
  3. Step 3: Cross multiply
    87,615.50x = 131,516.82 × 37,720.34
  4. Step 4: Simplify right side
    87,615.50x = 4,960,859,166.12
  5. Step 5: Solve for x
    x = 4,960,859,166.12/87,615.50
  6. Step 6: Final answer
    x = 56,620.79

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1.5x scale

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.