Home / 75,433.92-113,086.08-28,720.32

Finding the Fourth Proportional to 75,433.92, 113,086.08 and 28,720.32

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Solution

The fourth proportional to 75,433.92, 113,086.08 and 28,720.32 is: 43,055.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,433.92 : 113,086.08 = 28,720.32 : x
  2. Step 2: Convert to fraction form
    75,433.92/113,086.08 = 28,720.32/x
  3. Step 3: Cross multiply
    75,433.92x = 113,086.08 × 28,720.32
  4. Step 4: Simplify right side
    75,433.92x = 3,247,868,405.15
  5. Step 5: Solve for x
    x = 3,247,868,405.15/75,433.92
  6. Step 6: Final answer
    x = 43,055.81

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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.