Home / 75,722.56-113,511.52-28,324.80

Finding the Fourth Proportional to 75,722.56, 113,511.52 and 28,324.80

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Solution

The fourth proportional to 75,722.56, 113,511.52 and 28,324.80 is: 42,460.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,722.56 : 113,511.52 = 28,324.80 : x
  2. Step 2: Convert to fraction form
    75,722.56/113,511.52 = 28,324.80/x
  3. Step 3: Cross multiply
    75,722.56x = 113,511.52 × 28,324.80
  4. Step 4: Simplify right side
    75,722.56x = 3,215,191,101.70
  5. Step 5: Solve for x
    x = 3,215,191,101.70/75,722.56
  6. Step 6: Final answer
    x = 42,460.15

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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.