Home / 54,021.72-81,032.60-14,578.78

Finding the Fourth Proportional to 54,021.72, 81,032.60 and 14,578.78

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Solution

The fourth proportional to 54,021.72, 81,032.60 and 14,578.78 is: 21,868.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,021.72 : 81,032.60 = 14,578.78 : x
  2. Step 2: Convert to fraction form
    54,021.72/81,032.60 = 14,578.78/x
  3. Step 3: Cross multiply
    54,021.72x = 81,032.60 × 14,578.78
  4. Step 4: Simplify right side
    54,021.72x = 1,181,356,448.23
  5. Step 5: Solve for x
    x = 1,181,356,448.23/54,021.72
  6. Step 6: Final answer
    x = 21,868.18

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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.