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Finding the Fourth Proportional to 92,172.92, 127,163.84 and 53,920.28

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Solution

The fourth proportional to 92,172.92, 127,163.84 and 53,920.28 is: 74,389.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,172.92 : 127,163.84 = 53,920.28 : x
  2. Step 2: Convert to fraction form
    92,172.92/127,163.84 = 53,920.28/x
  3. Step 3: Cross multiply
    92,172.92x = 127,163.84 × 53,920.28
  4. Step 4: Simplify right side
    92,172.92x = 6,856,709,858.68
  5. Step 5: Solve for x
    x = 6,856,709,858.68/92,172.92
  6. Step 6: Final answer
    x = 74,389.63

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.