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Finding the Fourth Proportional to 51,969.87, 77,954.81 and 16,909.43

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Solution

The fourth proportional to 51,969.87, 77,954.81 and 16,909.43 is: 25,364.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,969.87 : 77,954.81 = 16,909.43 : x
  2. Step 2: Convert to fraction form
    51,969.87/77,954.81 = 16,909.43/x
  3. Step 3: Cross multiply
    51,969.87x = 77,954.81 × 16,909.43
  4. Step 4: Simplify right side
    51,969.87x = 1,318,170,928.54
  5. Step 5: Solve for x
    x = 1,318,170,928.54/51,969.87
  6. Step 6: Final answer
    x = 25,364.14

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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.