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Finding the Fourth Proportional to 70,014.45, 104,990.09 and 20,083.22

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Solution

The fourth proportional to 70,014.45, 104,990.09 and 20,083.22 is: 30,115.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,014.45 : 104,990.09 = 20,083.22 : x
  2. Step 2: Convert to fraction form
    70,014.45/104,990.09 = 20,083.22/x
  3. Step 3: Cross multiply
    70,014.45x = 104,990.09 × 20,083.22
  4. Step 4: Simplify right side
    70,014.45x = 2,108,538,449.92
  5. Step 5: Solve for x
    x = 2,108,538,449.92/70,014.45
  6. Step 6: Final answer
    x = 30,115.76

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1.5x scale

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.