Home / 54,861.88-82,313.32-21,605.13

Finding the Fourth Proportional to 54,861.88, 82,313.32 and 21,605.13

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Solution

The fourth proportional to 54,861.88, 82,313.32 and 21,605.13 is: 32,415.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,861.88 : 82,313.32 = 21,605.13 : x
  2. Step 2: Convert to fraction form
    54,861.88/82,313.32 = 21,605.13/x
  3. Step 3: Cross multiply
    54,861.88x = 82,313.32 × 21,605.13
  4. Step 4: Simplify right side
    54,861.88x = 1,778,389,979.33
  5. Step 5: Solve for x
    x = 1,778,389,979.33/54,861.88
  6. Step 6: Final answer
    x = 32,415.77

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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.