Home / 87,857.55-131,785.14-21,298.25

Finding the Fourth Proportional to 87,857.55, 131,785.14 and 21,298.25

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Solution

The fourth proportional to 87,857.55, 131,785.14 and 21,298.25 is: 31,947.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,857.55 : 131,785.14 = 21,298.25 : x
  2. Step 2: Convert to fraction form
    87,857.55/131,785.14 = 21,298.25/x
  3. Step 3: Cross multiply
    87,857.55x = 131,785.14 × 21,298.25
  4. Step 4: Simplify right side
    87,857.55x = 2,806,792,653.34
  5. Step 5: Solve for x
    x = 2,806,792,653.34/87,857.55
  6. Step 6: Final answer
    x = 31,947.09

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Similar ratio
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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.