Home / 54,218.63-81,333.46-18,675.31

Finding the Fourth Proportional to 54,218.63, 81,333.46 and 18,675.31

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Solution

The fourth proportional to 54,218.63, 81,333.46 and 18,675.31 is: 28,014.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,218.63 : 81,333.46 = 18,675.31 : x
  2. Step 2: Convert to fraction form
    54,218.63/81,333.46 = 18,675.31/x
  3. Step 3: Cross multiply
    54,218.63x = 81,333.46 × 18,675.31
  4. Step 4: Simplify right side
    54,218.63x = 1,518,927,578.87
  5. Step 5: Solve for x
    x = 1,518,927,578.87/54,218.63
  6. Step 6: Final answer
    x = 28,014.86

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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.