Home / 87,426.45-131,107.54-31,251.40

Finding the Fourth Proportional to 87,426.45, 131,107.54 and 31,251.40

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Solution

The fourth proportional to 87,426.45, 131,107.54 and 31,251.40 is: 46,865.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,426.45 : 131,107.54 = 31,251.40 : x
  2. Step 2: Convert to fraction form
    87,426.45/131,107.54 = 31,251.40/x
  3. Step 3: Cross multiply
    87,426.45x = 131,107.54 × 31,251.40
  4. Step 4: Simplify right side
    87,426.45x = 4,097,294,175.56
  5. Step 5: Solve for x
    x = 4,097,294,175.56/87,426.45
  6. Step 6: Final answer
    x = 46,865.61

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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.