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Finding the Fourth Proportional to 75,299.92, 104,022 and 60,172.72

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Solution

The fourth proportional to 75,299.92, 104,022 and 60,172.72 is: 83,124.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,299.92 : 104,022 = 60,172.72 : x
  2. Step 2: Convert to fraction form
    75,299.92/104,022 = 60,172.72/x
  3. Step 3: Cross multiply
    75,299.92x = 104,022 × 60,172.72
  4. Step 4: Simplify right side
    75,299.92x = 6,259,286,679.84
  5. Step 5: Solve for x
    x = 6,259,286,679.84/75,299.92
  6. Step 6: Final answer
    x = 83,124.75

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Why These Related Problems?

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