Home / 87,769.34-131,640.36-28,604.62

Finding the Fourth Proportional to 87,769.34, 131,640.36 and 28,604.62

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Solution

The fourth proportional to 87,769.34, 131,640.36 and 28,604.62 is: 42,902.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,769.34 : 131,640.36 = 28,604.62 : x
  2. Step 2: Convert to fraction form
    87,769.34/131,640.36 = 28,604.62/x
  3. Step 3: Cross multiply
    87,769.34x = 131,640.36 × 28,604.62
  4. Step 4: Simplify right side
    87,769.34x = 3,765,522,474.46
  5. Step 5: Solve for x
    x = 3,765,522,474.46/87,769.34
  6. Step 6: Final answer
    x = 42,902.48

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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.