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Finding the Fourth Proportional to 68,886.26, 103,333.23 and 21,507.89

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Solution

The fourth proportional to 68,886.26, 103,333.23 and 21,507.89 is: 32,263.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,886.26 : 103,333.23 = 21,507.89 : x
  2. Step 2: Convert to fraction form
    68,886.26/103,333.23 = 21,507.89/x
  3. Step 3: Cross multiply
    68,886.26x = 103,333.23 × 21,507.89
  4. Step 4: Simplify right side
    68,886.26x = 2,222,480,052.38
  5. Step 5: Solve for x
    x = 2,222,480,052.38/68,886.26
  6. Step 6: Final answer
    x = 32,263.04

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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.