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Finding the Fourth Proportional to 70,500.96, 105,751.62 and 17,910.36

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Solution

The fourth proportional to 70,500.96, 105,751.62 and 17,910.36 is: 26,865.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,500.96 : 105,751.62 = 17,910.36 : x
  2. Step 2: Convert to fraction form
    70,500.96/105,751.62 = 17,910.36/x
  3. Step 3: Cross multiply
    70,500.96x = 105,751.62 × 17,910.36
  4. Step 4: Simplify right side
    70,500.96x = 1,894,049,584.78
  5. Step 5: Solve for x
    x = 1,894,049,584.78/70,500.96
  6. Step 6: Final answer
    x = 26,865.59

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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.