Home / 54,640.34-81,971.40-17,209.86

Finding the Fourth Proportional to 54,640.34, 81,971.40 and 17,209.86

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Solution

The fourth proportional to 54,640.34, 81,971.40 and 17,209.86 is: 25,818.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,640.34 : 81,971.40 = 17,209.86 : x
  2. Step 2: Convert to fraction form
    54,640.34/81,971.40 = 17,209.86/x
  3. Step 3: Cross multiply
    54,640.34x = 81,971.40 × 17,209.86
  4. Step 4: Simplify right side
    54,640.34x = 1,410,716,318.00
  5. Step 5: Solve for x
    x = 1,410,716,318.00/54,640.34
  6. Step 6: Final answer
    x = 25,818.22

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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.