Home / 87,891.42-131,859.54-25,561.92

Finding the Fourth Proportional to 87,891.42, 131,859.54 and 25,561.92

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Solution

The fourth proportional to 87,891.42, 131,859.54 and 25,561.92 is: 38,349.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,891.42 : 131,859.54 = 25,561.92 : x
  2. Step 2: Convert to fraction form
    87,891.42/131,859.54 = 25,561.92/x
  3. Step 3: Cross multiply
    87,891.42x = 131,859.54 × 25,561.92
  4. Step 4: Simplify right side
    87,891.42x = 3,370,583,012.72
  5. Step 5: Solve for x
    x = 3,370,583,012.72/87,891.42
  6. Step 6: Final answer
    x = 38,349.40

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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.