Home / 68,531.07-102,795.53-21,783.27

Finding the Fourth Proportional to 68,531.07, 102,795.53 and 21,783.27

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Solution

The fourth proportional to 68,531.07, 102,795.53 and 21,783.27 is: 32,674.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,531.07 : 102,795.53 = 21,783.27 : x
  2. Step 2: Convert to fraction form
    68,531.07/102,795.53 = 21,783.27/x
  3. Step 3: Cross multiply
    68,531.07x = 102,795.53 × 21,783.27
  4. Step 4: Simplify right side
    68,531.07x = 2,239,222,675.87
  5. Step 5: Solve for x
    x = 2,239,222,675.87/68,531.07
  6. Step 6: Final answer
    x = 32,674.56

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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.