Home / 54,130.33-81,175.26-18,581.55

Finding the Fourth Proportional to 54,130.33, 81,175.26 and 18,581.55

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Solution

The fourth proportional to 54,130.33, 81,175.26 and 18,581.55 is: 27,865.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,130.33 : 81,175.26 = 18,581.55 : x
  2. Step 2: Convert to fraction form
    54,130.33/81,175.26 = 18,581.55/x
  3. Step 3: Cross multiply
    54,130.33x = 81,175.26 × 18,581.55
  4. Step 4: Simplify right side
    54,130.33x = 1,508,362,374.34
  5. Step 5: Solve for x
    x = 1,508,362,374.34/54,130.33
  6. Step 6: Final answer
    x = 27,865.39

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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.