Home / 54,652.90-81,979.37-42,191.12

Finding the Fourth Proportional to 54,652.90, 81,979.37 and 42,191.12

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Solution

The fourth proportional to 54,652.90, 81,979.37 and 42,191.12 is: 63,286.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,652.90 : 81,979.37 = 42,191.12 : x
  2. Step 2: Convert to fraction form
    54,652.90/81,979.37 = 42,191.12/x
  3. Step 3: Cross multiply
    54,652.90x = 81,979.37 × 42,191.12
  4. Step 4: Simplify right side
    54,652.90x = 3,458,800,816.34
  5. Step 5: Solve for x
    x = 3,458,800,816.34/54,652.90
  6. Step 6: Final answer
    x = 63,286.69

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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.