Home / 68,087.22-102,134.07-21,340.50

Finding the Fourth Proportional to 68,087.22, 102,134.07 and 21,340.50

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Solution

The fourth proportional to 68,087.22, 102,134.07 and 21,340.50 is: 32,011.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,087.22 : 102,134.07 = 21,340.50 : x
  2. Step 2: Convert to fraction form
    68,087.22/102,134.07 = 21,340.50/x
  3. Step 3: Cross multiply
    68,087.22x = 102,134.07 × 21,340.50
  4. Step 4: Simplify right side
    68,087.22x = 2,179,592,120.84
  5. Step 5: Solve for x
    x = 2,179,592,120.84/68,087.22
  6. Step 6: Final answer
    x = 32,011.77

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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.