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Finding the Fourth Proportional to 70,449.44, 105,672.69 and 17,141.70

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Solution

The fourth proportional to 70,449.44, 105,672.69 and 17,141.70 is: 25,712.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,449.44 : 105,672.69 = 17,141.70 : x
  2. Step 2: Convert to fraction form
    70,449.44/105,672.69 = 17,141.70/x
  3. Step 3: Cross multiply
    70,449.44x = 105,672.69 × 17,141.70
  4. Step 4: Simplify right side
    70,449.44x = 1,811,409,550.17
  5. Step 5: Solve for x
    x = 1,811,409,550.17/70,449.44
  6. Step 6: Final answer
    x = 25,712.19

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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.