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Finding the Fourth Proportional to 68,300.26, 102,468.63 and 21,554.02

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Solution

The fourth proportional to 68,300.26, 102,468.63 and 21,554.02 is: 32,336.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,300.26 : 102,468.63 = 21,554.02 : x
  2. Step 2: Convert to fraction form
    68,300.26/102,468.63 = 21,554.02/x
  3. Step 3: Cross multiply
    68,300.26x = 102,468.63 × 21,554.02
  4. Step 4: Simplify right side
    68,300.26x = 2,208,610,900.39
  5. Step 5: Solve for x
    x = 2,208,610,900.39/68,300.26
  6. Step 6: Final answer
    x = 32,336.79

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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.