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Finding the Fourth Proportional to 69,264.30, 103,910.28 and 21,886.71

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Solution

The fourth proportional to 69,264.30, 103,910.28 and 21,886.71 is: 32,834.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,264.30 : 103,910.28 = 21,886.71 : x
  2. Step 2: Convert to fraction form
    69,264.30/103,910.28 = 21,886.71/x
  3. Step 3: Cross multiply
    69,264.30x = 103,910.28 × 21,886.71
  4. Step 4: Simplify right side
    69,264.30x = 2,274,254,164.38
  5. Step 5: Solve for x
    x = 2,274,254,164.38/69,264.30
  6. Step 6: Final answer
    x = 32,834.44

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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.