Home / 87,928.64-131,891.14-21,369.12

Finding the Fourth Proportional to 87,928.64, 131,891.14 and 21,369.12

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Solution

The fourth proportional to 87,928.64, 131,891.14 and 21,369.12 is: 32,053.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,928.64 : 131,891.14 = 21,369.12 : x
  2. Step 2: Convert to fraction form
    87,928.64/131,891.14 = 21,369.12/x
  3. Step 3: Cross multiply
    87,928.64x = 131,891.14 × 21,369.12
  4. Step 4: Simplify right side
    87,928.64x = 2,818,397,009.52
  5. Step 5: Solve for x
    x = 2,818,397,009.52/87,928.64
  6. Step 6: Final answer
    x = 32,053.23

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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.