Home / 68,131.24-102,145.68-45,882.16

Finding the Fourth Proportional to 68,131.24, 102,145.68 and 45,882.16

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Solution

The fourth proportional to 68,131.24, 102,145.68 and 45,882.16 is: 68,788.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,131.24 : 102,145.68 = 45,882.16 : x
  2. Step 2: Convert to fraction form
    68,131.24/102,145.68 = 45,882.16/x
  3. Step 3: Cross multiply
    68,131.24x = 102,145.68 × 45,882.16
  4. Step 4: Simplify right side
    68,131.24x = 4,686,664,433.07
  5. Step 5: Solve for x
    x = 4,686,664,433.07/68,131.24
  6. Step 6: Final answer
    x = 68,788.77

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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.