Home / 54,490.36-81,785.24-28,213.96

Finding the Fourth Proportional to 54,490.36, 81,785.24 and 28,213.96

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Solution

The fourth proportional to 54,490.36, 81,785.24 and 28,213.96 is: 42,346.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,490.36 : 81,785.24 = 28,213.96 : x
  2. Step 2: Convert to fraction form
    54,490.36/81,785.24 = 28,213.96/x
  3. Step 3: Cross multiply
    54,490.36x = 81,785.24 × 28,213.96
  4. Step 4: Simplify right side
    54,490.36x = 2,307,485,489.95
  5. Step 5: Solve for x
    x = 2,307,485,489.95/54,490.36
  6. Step 6: Final answer
    x = 42,346.67

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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.