Home / 68,120.26-102,179.20-30,653.82

Finding the Fourth Proportional to 68,120.26, 102,179.20 and 30,653.82

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Solution

The fourth proportional to 68,120.26, 102,179.20 and 30,653.82 is: 45,980.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,120.26 : 102,179.20 = 30,653.82 : x
  2. Step 2: Convert to fraction form
    68,120.26/102,179.20 = 30,653.82/x
  3. Step 3: Cross multiply
    68,120.26x = 102,179.20 × 30,653.82
  4. Step 4: Simplify right side
    68,120.26x = 3,132,182,804.54
  5. Step 5: Solve for x
    x = 3,132,182,804.54/68,120.26
  6. Step 6: Final answer
    x = 45,980.19

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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.