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Finding the Fourth Proportional to 69,068.09, 103,599 and 21,682.08

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Solution

The fourth proportional to 69,068.09, 103,599 and 21,682.08 is: 32,522.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,068.09 : 103,599 = 21,682.08 : x
  2. Step 2: Convert to fraction form
    69,068.09/103,599 = 21,682.08/x
  3. Step 3: Cross multiply
    69,068.09x = 103,599 × 21,682.08
  4. Step 4: Simplify right side
    69,068.09x = 2,246,241,805.92
  5. Step 5: Solve for x
    x = 2,246,241,805.92/69,068.09
  6. Step 6: Final answer
    x = 32,522.13

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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.