Home / 52,072.34-78,107.82-12,629.84

Finding the Fourth Proportional to 52,072.34, 78,107.82 and 12,629.84

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Solution

The fourth proportional to 52,072.34, 78,107.82 and 12,629.84 is: 18,944.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,072.34 : 78,107.82 = 12,629.84 : x
  2. Step 2: Convert to fraction form
    52,072.34/78,107.82 = 12,629.84/x
  3. Step 3: Cross multiply
    52,072.34x = 78,107.82 × 12,629.84
  4. Step 4: Simplify right side
    52,072.34x = 986,489,269.35
  5. Step 5: Solve for x
    x = 986,489,269.35/52,072.34
  6. Step 6: Final answer
    x = 18,944.59

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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.