Home / 70,568.20-105,541.26-40,909.24

Finding the Fourth Proportional to 70,568.20, 105,541.26 and 40,909.24

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Solution

The fourth proportional to 70,568.20, 105,541.26 and 40,909.24 is: 61,183.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,568.20 : 105,541.26 = 40,909.24 : x
  2. Step 2: Convert to fraction form
    70,568.20/105,541.26 = 40,909.24/x
  3. Step 3: Cross multiply
    70,568.20x = 105,541.26 × 40,909.24
  4. Step 4: Simplify right side
    70,568.20x = 4,317,612,735.24
  5. Step 5: Solve for x
    x = 4,317,612,735.24/70,568.20
  6. Step 6: Final answer
    x = 61,183.55

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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.