Home / 40,812.54-61,168.05-18,619.98

Finding the Fourth Proportional to 40,812.54, 61,168.05 and 18,619.98

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Solution

The fourth proportional to 40,812.54, 61,168.05 and 18,619.98 is: 27,906.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,812.54 : 61,168.05 = 18,619.98 : x
  2. Step 2: Convert to fraction form
    40,812.54/61,168.05 = 18,619.98/x
  3. Step 3: Cross multiply
    40,812.54x = 61,168.05 × 18,619.98
  4. Step 4: Simplify right side
    40,812.54x = 1,138,947,867.64
  5. Step 5: Solve for x
    x = 1,138,947,867.64/40,812.54
  6. Step 6: Final answer
    x = 27,906.81

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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.