Home / 212,504.09-318,745.89-52,579.37

Finding the Fourth Proportional to 212,504.09, 318,745.89 and 52,579.37

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Solution

The fourth proportional to 212,504.09, 318,745.89 and 52,579.37 is: 78,866.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,504.09 : 318,745.89 = 52,579.37 : x
  2. Step 2: Convert to fraction form
    212,504.09/318,745.89 = 52,579.37/x
  3. Step 3: Cross multiply
    212,504.09x = 318,745.89 × 52,579.37
  4. Step 4: Simplify right side
    212,504.09x = 16,759,458,086.29
  5. Step 5: Solve for x
    x = 16,759,458,086.29/212,504.09
  6. Step 6: Final answer
    x = 78,866.52

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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.