Home / 57,299.70-79,072.32-31,804.56

Finding the Fourth Proportional to 57,299.70, 79,072.32 and 31,804.56

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Solution

The fourth proportional to 57,299.70, 79,072.32 and 31,804.56 is: 43,889.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,299.70 : 79,072.32 = 31,804.56 : x
  2. Step 2: Convert to fraction form
    57,299.70/79,072.32 = 31,804.56/x
  3. Step 3: Cross multiply
    57,299.70x = 79,072.32 × 31,804.56
  4. Step 4: Simplify right side
    57,299.70x = 2,514,860,345.78
  5. Step 5: Solve for x
    x = 2,514,860,345.78/57,299.70
  6. Step 6: Final answer
    x = 43,889.59

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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.