Home / 72,364.26-108,589.20-40,370.28

Finding the Fourth Proportional to 72,364.26, 108,589.20 and 40,370.28

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Solution

The fourth proportional to 72,364.26, 108,589.20 and 40,370.28 is: 60,579.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,364.26 : 108,589.20 = 40,370.28 : x
  2. Step 2: Convert to fraction form
    72,364.26/108,589.20 = 40,370.28/x
  3. Step 3: Cross multiply
    72,364.26x = 108,589.20 × 40,370.28
  4. Step 4: Simplify right side
    72,364.26x = 4,383,776,408.98
  5. Step 5: Solve for x
    x = 4,383,776,408.98/72,364.26
  6. Step 6: Final answer
    x = 60,579.30

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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.