Home / 57,879.51-79,837.96-39,721.94

Finding the Fourth Proportional to 57,879.51, 79,837.96 and 39,721.94

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Solution

The fourth proportional to 57,879.51, 79,837.96 and 39,721.94 is: 54,791.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,879.51 : 79,837.96 = 39,721.94 : x
  2. Step 2: Convert to fraction form
    57,879.51/79,837.96 = 39,721.94/x
  3. Step 3: Cross multiply
    57,879.51x = 79,837.96 × 39,721.94
  4. Step 4: Simplify right side
    57,879.51x = 3,171,318,656.84
  5. Step 5: Solve for x
    x = 3,171,318,656.84/57,879.51
  6. Step 6: Final answer
    x = 54,791.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.