Home / 66,243.33-99,350.07-18,857.37

Finding the Fourth Proportional to 66,243.33, 99,350.07 and 18,857.37

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Solution

The fourth proportional to 66,243.33, 99,350.07 and 18,857.37 is: 28,281.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,243.33 : 99,350.07 = 18,857.37 : x
  2. Step 2: Convert to fraction form
    66,243.33/99,350.07 = 18,857.37/x
  3. Step 3: Cross multiply
    66,243.33x = 99,350.07 × 18,857.37
  4. Step 4: Simplify right side
    66,243.33x = 1,873,481,029.52
  5. Step 5: Solve for x
    x = 1,873,481,029.52/66,243.33
  6. Step 6: Final answer
    x = 28,281.81

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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.