Home / 40,836.56-61,172.81-18,619.37

Finding the Fourth Proportional to 40,836.56, 61,172.81 and 18,619.37

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Solution

The fourth proportional to 40,836.56, 61,172.81 and 18,619.37 is: 27,891.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,836.56 : 61,172.81 = 18,619.37 : x
  2. Step 2: Convert to fraction form
    40,836.56/61,172.81 = 18,619.37/x
  3. Step 3: Cross multiply
    40,836.56x = 61,172.81 × 18,619.37
  4. Step 4: Simplify right side
    40,836.56x = 1,138,998,784.37
  5. Step 5: Solve for x
    x = 1,138,998,784.37/40,836.56
  6. Step 6: Final answer
    x = 27,891.65

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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.