Home / 68,531.45-102,796.09-21,783.65

Finding the Fourth Proportional to 68,531.45, 102,796.09 and 21,783.65

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Solution

The fourth proportional to 68,531.45, 102,796.09 and 21,783.65 is: 32,675.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,531.45 : 102,796.09 = 21,783.65 : x
  2. Step 2: Convert to fraction form
    68,531.45/102,796.09 = 21,783.65/x
  3. Step 3: Cross multiply
    68,531.45x = 102,796.09 × 21,783.65
  4. Step 4: Simplify right side
    68,531.45x = 2,239,273,477.49
  5. Step 5: Solve for x
    x = 2,239,273,477.49/68,531.45
  6. Step 6: Final answer
    x = 32,675.12

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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.