Home / 54,640.10-81,907.86-21,349.10

Finding the Fourth Proportional to 54,640.10, 81,907.86 and 21,349.10

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Solution

The fourth proportional to 54,640.10, 81,907.86 and 21,349.10 is: 32,003.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,640.10 : 81,907.86 = 21,349.10 : x
  2. Step 2: Convert to fraction form
    54,640.10/81,907.86 = 21,349.10/x
  3. Step 3: Cross multiply
    54,640.10x = 81,907.86 × 21,349.10
  4. Step 4: Simplify right side
    54,640.10x = 1,748,659,093.93
  5. Step 5: Solve for x
    x = 1,748,659,093.93/54,640.10
  6. Step 6: Final answer
    x = 32,003.22

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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.