Home / 68,317.64-102,464.85-18,386.61

Finding the Fourth Proportional to 68,317.64, 102,464.85 and 18,386.61

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Solution

The fourth proportional to 68,317.64, 102,464.85 and 18,386.61 is: 27,576.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,317.64 : 102,464.85 = 18,386.61 : x
  2. Step 2: Convert to fraction form
    68,317.64/102,464.85 = 18,386.61/x
  3. Step 3: Cross multiply
    68,317.64x = 102,464.85 × 18,386.61
  4. Step 4: Simplify right side
    68,317.64x = 1,883,981,393.31
  5. Step 5: Solve for x
    x = 1,883,981,393.31/68,317.64
  6. Step 6: Final answer
    x = 27,576.79

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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.