Home / 87,940.16-131,908.08-25,611.20

Finding the Fourth Proportional to 87,940.16, 131,908.08 and 25,611.20

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Solution

The fourth proportional to 87,940.16, 131,908.08 and 25,611.20 is: 38,416.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,940.16 : 131,908.08 = 25,611.20 : x
  2. Step 2: Convert to fraction form
    87,940.16/131,908.08 = 25,611.20/x
  3. Step 3: Cross multiply
    87,940.16x = 131,908.08 × 25,611.20
  4. Step 4: Simplify right side
    87,940.16x = 3,378,324,218.50
  5. Step 5: Solve for x
    x = 3,378,324,218.50/87,940.16
  6. Step 6: Final answer
    x = 38,416.17

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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.