Home / 68,620.56-102,966.07-51,975.06

Finding the Fourth Proportional to 68,620.56, 102,966.07 and 51,975.06

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Solution

The fourth proportional to 68,620.56, 102,966.07 and 51,975.06 is: 77,989.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,620.56 : 102,966.07 = 51,975.06 : x
  2. Step 2: Convert to fraction form
    68,620.56/102,966.07 = 51,975.06/x
  3. Step 3: Cross multiply
    68,620.56x = 102,966.07 × 51,975.06
  4. Step 4: Simplify right side
    68,620.56x = 5,351,667,666.21
  5. Step 5: Solve for x
    x = 5,351,667,666.21/68,620.56
  6. Step 6: Final answer
    x = 77,989.27

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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.