Home / 54,755.22-82,141.71-21,457.23

Finding the Fourth Proportional to 54,755.22, 82,141.71 and 21,457.23

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Solution

The fourth proportional to 54,755.22, 82,141.71 and 21,457.23 is: 32,189.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,755.22 : 82,141.71 = 21,457.23 : x
  2. Step 2: Convert to fraction form
    54,755.22/82,141.71 = 21,457.23/x
  3. Step 3: Cross multiply
    54,755.22x = 82,141.71 × 21,457.23
  4. Step 4: Simplify right side
    54,755.22x = 1,762,533,769.42
  5. Step 5: Solve for x
    x = 1,762,533,769.42/54,755.22
  6. Step 6: Final answer
    x = 32,189.33

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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.