Home / 80,018.57-110,331.99-54,540.02

Finding the Fourth Proportional to 80,018.57, 110,331.99 and 54,540.02

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Solution

The fourth proportional to 80,018.57, 110,331.99 and 54,540.02 is: 75,201.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,018.57 : 110,331.99 = 54,540.02 : x
  2. Step 2: Convert to fraction form
    80,018.57/110,331.99 = 54,540.02/x
  3. Step 3: Cross multiply
    80,018.57x = 110,331.99 × 54,540.02
  4. Step 4: Simplify right side
    80,018.57x = 6,017,509,217.07
  5. Step 5: Solve for x
    x = 6,017,509,217.07/80,018.57
  6. Step 6: Final answer
    x = 75,201.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.