Home / 68,723.37-102,910.05-45,278.73

Finding the Fourth Proportional to 68,723.37, 102,910.05 and 45,278.73

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Solution

The fourth proportional to 68,723.37, 102,910.05 and 45,278.73 is: 67,802.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,723.37 : 102,910.05 = 45,278.73 : x
  2. Step 2: Convert to fraction form
    68,723.37/102,910.05 = 45,278.73/x
  3. Step 3: Cross multiply
    68,723.37x = 102,910.05 × 45,278.73
  4. Step 4: Simplify right side
    68,723.37x = 4,659,636,368.24
  5. Step 5: Solve for x
    x = 4,659,636,368.24/68,723.37
  6. Step 6: Final answer
    x = 67,802.79

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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.