Home / 70,334.72-105,517.44-28,785.92

Finding the Fourth Proportional to 70,334.72, 105,517.44 and 28,785.92

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Solution

The fourth proportional to 70,334.72, 105,517.44 and 28,785.92 is: 43,185.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,334.72 : 105,517.44 = 28,785.92 : x
  2. Step 2: Convert to fraction form
    70,334.72/105,517.44 = 28,785.92/x
  3. Step 3: Cross multiply
    70,334.72x = 105,517.44 × 28,785.92
  4. Step 4: Simplify right side
    70,334.72x = 3,037,416,586.44
  5. Step 5: Solve for x
    x = 3,037,416,586.44/70,334.72
  6. Step 6: Final answer
    x = 43,185.17

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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.