Home / 54,285.59-81,408.38-18,737.87

Finding the Fourth Proportional to 54,285.59, 81,408.38 and 18,737.87

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Solution

The fourth proportional to 54,285.59, 81,408.38 and 18,737.87 is: 28,099.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,285.59 : 81,408.38 = 18,737.87 : x
  2. Step 2: Convert to fraction form
    54,285.59/81,408.38 = 18,737.87/x
  3. Step 3: Cross multiply
    54,285.59x = 81,408.38 × 18,737.87
  4. Step 4: Simplify right side
    54,285.59x = 1,525,419,140.62
  5. Step 5: Solve for x
    x = 1,525,419,140.62/54,285.59
  6. Step 6: Final answer
    x = 28,099.89

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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.