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Finding the Fourth Proportional to 73,488.87, 101,415.42 and 39,954.87

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Solution

The fourth proportional to 73,488.87, 101,415.42 and 39,954.87 is: 55,138.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,488.87 : 101,415.42 = 39,954.87 : x
  2. Step 2: Convert to fraction form
    73,488.87/101,415.42 = 39,954.87/x
  3. Step 3: Cross multiply
    73,488.87x = 101,415.42 × 39,954.87
  4. Step 4: Simplify right side
    73,488.87x = 4,052,039,922.10
  5. Step 5: Solve for x
    x = 4,052,039,922.10/73,488.87
  6. Step 6: Final answer
    x = 55,138.14

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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.