Home / 54,422.92-81,634.20-30,719.72

Finding the Fourth Proportional to 54,422.92, 81,634.20 and 30,719.72

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Solution

The fourth proportional to 54,422.92, 81,634.20 and 30,719.72 is: 46,079.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,422.92 : 81,634.20 = 30,719.72 : x
  2. Step 2: Convert to fraction form
    54,422.92/81,634.20 = 30,719.72/x
  3. Step 3: Cross multiply
    54,422.92x = 81,634.20 × 30,719.72
  4. Step 4: Simplify right side
    54,422.92x = 2,507,779,766.42
  5. Step 5: Solve for x
    x = 2,507,779,766.42/54,422.92
  6. Step 6: Final answer
    x = 46,079.48

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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.