Home / 54,218.10-81,329.43-19,157.94

Finding the Fourth Proportional to 54,218.10, 81,329.43 and 19,157.94

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Solution

The fourth proportional to 54,218.10, 81,329.43 and 19,157.94 is: 28,737.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,218.10 : 81,329.43 = 19,157.94 : x
  2. Step 2: Convert to fraction form
    54,218.10/81,329.43 = 19,157.94/x
  3. Step 3: Cross multiply
    54,218.10x = 81,329.43 × 19,157.94
  4. Step 4: Simplify right side
    54,218.10x = 1,558,104,340.17
  5. Step 5: Solve for x
    x = 1,558,104,340.17/54,218.10
  6. Step 6: Final answer
    x = 28,737.72

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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.