Home / 51,388.72-77,083.94-18,109.19

Finding the Fourth Proportional to 51,388.72, 77,083.94 and 18,109.19

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Solution

The fourth proportional to 51,388.72, 77,083.94 and 18,109.19 is: 27,164.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,388.72 : 77,083.94 = 18,109.19 : x
  2. Step 2: Convert to fraction form
    51,388.72/77,083.94 = 18,109.19/x
  3. Step 3: Cross multiply
    51,388.72x = 77,083.94 × 18,109.19
  4. Step 4: Simplify right side
    51,388.72x = 1,395,927,634.73
  5. Step 5: Solve for x
    x = 1,395,927,634.73/51,388.72
  6. Step 6: Final answer
    x = 27,164.08

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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.