Home / 87,562.78-131,295.62-30,621.42

Finding the Fourth Proportional to 87,562.78, 131,295.62 and 30,621.42

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Solution

The fourth proportional to 87,562.78, 131,295.62 and 30,621.42 is: 45,915.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,562.78 : 131,295.62 = 30,621.42 : x
  2. Step 2: Convert to fraction form
    87,562.78/131,295.62 = 30,621.42/x
  3. Step 3: Cross multiply
    87,562.78x = 131,295.62 × 30,621.42
  4. Step 4: Simplify right side
    87,562.78x = 4,020,458,400.73
  5. Step 5: Solve for x
    x = 4,020,458,400.73/87,562.78
  6. Step 6: Final answer
    x = 45,915.15

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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.