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Finding the Fourth Proportional to 68,350.49, 102,525.73 and 21,599.72

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Solution

The fourth proportional to 68,350.49, 102,525.73 and 21,599.72 is: 32,399.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,350.49 : 102,525.73 = 21,599.72 : x
  2. Step 2: Convert to fraction form
    68,350.49/102,525.73 = 21,599.72/x
  3. Step 3: Cross multiply
    68,350.49x = 102,525.73 × 21,599.72
  4. Step 4: Simplify right side
    68,350.49x = 2,214,527,000.14
  5. Step 5: Solve for x
    x = 2,214,527,000.14/68,350.49
  6. Step 6: Final answer
    x = 32,399.58

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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.