Home / 87,200.42-130,878.39-40,479.62

Finding the Fourth Proportional to 87,200.42, 130,878.39 and 40,479.62

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Solution

The fourth proportional to 87,200.42, 130,878.39 and 40,479.62 is: 60,755.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,200.42 : 130,878.39 = 40,479.62 : x
  2. Step 2: Convert to fraction form
    87,200.42/130,878.39 = 40,479.62/x
  3. Step 3: Cross multiply
    87,200.42x = 130,878.39 × 40,479.62
  4. Step 4: Simplify right side
    87,200.42x = 5,297,907,493.41
  5. Step 5: Solve for x
    x = 5,297,907,493.41/87,200.42
  6. Step 6: Final answer
    x = 60,755.53

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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.