Home / 54,716.63-82,111.87-21,432.56

Finding the Fourth Proportional to 54,716.63, 82,111.87 and 21,432.56

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Solution

The fourth proportional to 54,716.63, 82,111.87 and 21,432.56 is: 32,163.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,716.63 : 82,111.87 = 21,432.56 : x
  2. Step 2: Convert to fraction form
    54,716.63/82,111.87 = 21,432.56/x
  3. Step 3: Cross multiply
    54,716.63x = 82,111.87 × 21,432.56
  4. Step 4: Simplify right side
    54,716.63x = 1,759,868,000.02
  5. Step 5: Solve for x
    x = 1,759,868,000.02/54,716.63
  6. Step 6: Final answer
    x = 32,163.31

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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.