Home / 57,879.09-87,252.45-54,021.31

Finding the Fourth Proportional to 57,879.09, 87,252.45 and 54,021.31

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Solution

The fourth proportional to 57,879.09, 87,252.45 and 54,021.31 is: 81,436.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,879.09 : 87,252.45 = 54,021.31 : x
  2. Step 2: Convert to fraction form
    57,879.09/87,252.45 = 54,021.31/x
  3. Step 3: Cross multiply
    57,879.09x = 87,252.45 × 54,021.31
  4. Step 4: Simplify right side
    57,879.09x = 4,713,490,943.34
  5. Step 5: Solve for x
    x = 4,713,490,943.34/57,879.09
  6. Step 6: Final answer
    x = 81,436.85

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.