Home / 75,431.11-113,193.38-43,856.02

Finding the Fourth Proportional to 75,431.11, 113,193.38 and 43,856.02

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Solution

The fourth proportional to 75,431.11, 113,193.38 and 43,856.02 is: 65,811.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,431.11 : 113,193.38 = 43,856.02 : x
  2. Step 2: Convert to fraction form
    75,431.11/113,193.38 = 43,856.02/x
  3. Step 3: Cross multiply
    75,431.11x = 113,193.38 × 43,856.02
  4. Step 4: Simplify right side
    75,431.11x = 4,964,211,137.15
  5. Step 5: Solve for x
    x = 4,964,211,137.15/75,431.11
  6. Step 6: Final answer
    x = 65,811.19

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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.