Home / 54,408.26-81,563.15-19,339.72

Finding the Fourth Proportional to 54,408.26, 81,563.15 and 19,339.72

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Solution

The fourth proportional to 54,408.26, 81,563.15 and 19,339.72 is: 28,992.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,408.26 : 81,563.15 = 19,339.72 : x
  2. Step 2: Convert to fraction form
    54,408.26/81,563.15 = 19,339.72/x
  3. Step 3: Cross multiply
    54,408.26x = 81,563.15 × 19,339.72
  4. Step 4: Simplify right side
    54,408.26x = 1,577,408,327.76
  5. Step 5: Solve for x
    x = 1,577,408,327.76/54,408.26
  6. Step 6: Final answer
    x = 28,992.07

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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.