Home / 72,880.20-109,232.52-30,744

Finding the Fourth Proportional to 72,880.20, 109,232.52 and 30,744

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Solution

The fourth proportional to 72,880.20, 109,232.52 and 30,744 is: 46,078.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,880.20 : 109,232.52 = 30,744 : x
  2. Step 2: Convert to fraction form
    72,880.20/109,232.52 = 30,744/x
  3. Step 3: Cross multiply
    72,880.20x = 109,232.52 × 30,744
  4. Step 4: Simplify right side
    72,880.20x = 3,358,244,594.88
  5. Step 5: Solve for x
    x = 3,358,244,594.88/72,880.20
  6. Step 6: Final answer
    x = 46,078.97

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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.