Home / 87,479.56-131,286.30-45,394.12

Finding the Fourth Proportional to 87,479.56, 131,286.30 and 45,394.12

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Solution

The fourth proportional to 87,479.56, 131,286.30 and 45,394.12 is: 68,125.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,479.56 : 131,286.30 = 45,394.12 : x
  2. Step 2: Convert to fraction form
    87,479.56/131,286.30 = 45,394.12/x
  3. Step 3: Cross multiply
    87,479.56x = 131,286.30 × 45,394.12
  4. Step 4: Simplify right side
    87,479.56x = 5,959,626,056.56
  5. Step 5: Solve for x
    x = 5,959,626,056.56/87,479.56
  6. Step 6: Final answer
    x = 68,125.93

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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.