Home / 54,040.50-81,056.70-18,980.46

Finding the Fourth Proportional to 54,040.50, 81,056.70 and 18,980.46

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Solution

The fourth proportional to 54,040.50, 81,056.70 and 18,980.46 is: 28,469.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,040.50 : 81,056.70 = 18,980.46 : x
  2. Step 2: Convert to fraction form
    54,040.50/81,056.70 = 18,980.46/x
  3. Step 3: Cross multiply
    54,040.50x = 81,056.70 × 18,980.46
  4. Step 4: Simplify right side
    54,040.50x = 1,538,493,452.08
  5. Step 5: Solve for x
    x = 1,538,493,452.08/54,040.50
  6. Step 6: Final answer
    x = 28,469.27

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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.