Home / 82,821.78-114,264.94-54,158.21

Finding the Fourth Proportional to 82,821.78, 114,264.94 and 54,158.21

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Solution

The fourth proportional to 82,821.78, 114,264.94 and 54,158.21 is: 74,719.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,821.78 : 114,264.94 = 54,158.21 : x
  2. Step 2: Convert to fraction form
    82,821.78/114,264.94 = 54,158.21/x
  3. Step 3: Cross multiply
    82,821.78x = 114,264.94 × 54,158.21
  4. Step 4: Simplify right side
    82,821.78x = 6,188,384,616.16
  5. Step 5: Solve for x
    x = 6,188,384,616.16/82,821.78
  6. Step 6: Final answer
    x = 74,719.29

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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.