Home / 51,614.84-77,425.86-20,450

Finding the Fourth Proportional to 51,614.84, 77,425.86 and 20,450

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Solution

The fourth proportional to 51,614.84, 77,425.86 and 20,450 is: 30,676.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,614.84 : 77,425.86 = 20,450 : x
  2. Step 2: Convert to fraction form
    51,614.84/77,425.86 = 20,450/x
  3. Step 3: Cross multiply
    51,614.84x = 77,425.86 × 20,450
  4. Step 4: Simplify right side
    51,614.84x = 1,583,358,837
  5. Step 5: Solve for x
    x = 1,583,358,837/51,614.84
  6. Step 6: Final answer
    x = 30,676.43

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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.