Home / 54,226.50-81,339.75-20,961.42

Finding the Fourth Proportional to 54,226.50, 81,339.75 and 20,961.42

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Solution

The fourth proportional to 54,226.50, 81,339.75 and 20,961.42 is: 31,442.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,226.50 : 81,339.75 = 20,961.42 : x
  2. Step 2: Convert to fraction form
    54,226.50/81,339.75 = 20,961.42/x
  3. Step 3: Cross multiply
    54,226.50x = 81,339.75 × 20,961.42
  4. Step 4: Simplify right side
    54,226.50x = 1,704,996,662.45
  5. Step 5: Solve for x
    x = 1,704,996,662.45/54,226.50
  6. Step 6: Final answer
    x = 31,442.13

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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.