Home / 68,405.12-102,670.75-34,694.79

Finding the Fourth Proportional to 68,405.12, 102,670.75 and 34,694.79

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Solution

The fourth proportional to 68,405.12, 102,670.75 and 34,694.79 is: 52,074.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,405.12 : 102,670.75 = 34,694.79 : x
  2. Step 2: Convert to fraction form
    68,405.12/102,670.75 = 34,694.79/x
  3. Step 3: Cross multiply
    68,405.12x = 102,670.75 × 34,694.79
  4. Step 4: Simplify right side
    68,405.12x = 3,562,140,110.39
  5. Step 5: Solve for x
    x = 3,562,140,110.39/68,405.12
  6. Step 6: Final answer
    x = 52,074.18

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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.