Home / 51,911.56-77,817.60-33,138.64

Finding the Fourth Proportional to 51,911.56, 77,817.60 and 33,138.64

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Solution

The fourth proportional to 51,911.56, 77,817.60 and 33,138.64 is: 49,676.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,911.56 : 77,817.60 = 33,138.64 : x
  2. Step 2: Convert to fraction form
    51,911.56/77,817.60 = 33,138.64/x
  3. Step 3: Cross multiply
    51,911.56x = 77,817.60 × 33,138.64
  4. Step 4: Simplify right side
    51,911.56x = 2,578,769,432.06
  5. Step 5: Solve for x
    x = 2,578,769,432.06/51,911.56
  6. Step 6: Final answer
    x = 49,676.21

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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.