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Finding the Fourth Proportional to 67,954.40, 101,927.96 and 21,201.92

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Solution

The fourth proportional to 67,954.40, 101,927.96 and 21,201.92 is: 31,801.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,954.40 : 101,927.96 = 21,201.92 : x
  2. Step 2: Convert to fraction form
    67,954.40/101,927.96 = 21,201.92/x
  3. Step 3: Cross multiply
    67,954.40x = 101,927.96 × 21,201.92
  4. Step 4: Simplify right side
    67,954.40x = 2,161,068,453.68
  5. Step 5: Solve for x
    x = 2,161,068,453.68/67,954.40
  6. Step 6: Final answer
    x = 31,801.74

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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.