Home / 51,935.80-77,911.38-20,770.36

Finding the Fourth Proportional to 51,935.80, 77,911.38 and 20,770.36

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Solution

The fourth proportional to 51,935.80, 77,911.38 and 20,770.36 is: 31,158.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,935.80 : 77,911.38 = 20,770.36 : x
  2. Step 2: Convert to fraction form
    51,935.80/77,911.38 = 20,770.36/x
  3. Step 3: Cross multiply
    51,935.80x = 77,911.38 × 20,770.36
  4. Step 4: Simplify right side
    51,935.80x = 1,618,247,410.70
  5. Step 5: Solve for x
    x = 1,618,247,410.70/51,935.80
  6. Step 6: Final answer
    x = 31,158.61

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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.