Home / 51,975.75-77,968.49-16,905.99

Finding the Fourth Proportional to 51,975.75, 77,968.49 and 16,905.99

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Solution

The fourth proportional to 51,975.75, 77,968.49 and 16,905.99 is: 25,360.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,975.75 : 77,968.49 = 16,905.99 : x
  2. Step 2: Convert to fraction form
    51,975.75/77,968.49 = 16,905.99/x
  3. Step 3: Cross multiply
    51,975.75x = 77,968.49 × 16,905.99
  4. Step 4: Simplify right side
    51,975.75x = 1,318,134,427.73
  5. Step 5: Solve for x
    x = 1,318,134,427.73/51,975.75
  6. Step 6: Final answer
    x = 25,360.57

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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.