Home / 54,296.11-81,424.20-18,748.42

Finding the Fourth Proportional to 54,296.11, 81,424.20 and 18,748.42

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Solution

The fourth proportional to 54,296.11, 81,424.20 and 18,748.42 is: 28,115.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,296.11 : 81,424.20 = 18,748.42 : x
  2. Step 2: Convert to fraction form
    54,296.11/81,424.20 = 18,748.42/x
  3. Step 3: Cross multiply
    54,296.11x = 81,424.20 × 18,748.42
  4. Step 4: Simplify right side
    54,296.11x = 1,526,575,099.76
  5. Step 5: Solve for x
    x = 1,526,575,099.76/54,296.11
  6. Step 6: Final answer
    x = 28,115.74

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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.