Home / 53,979.72-81,380.62-50,174.34

Finding the Fourth Proportional to 53,979.72, 81,380.62 and 50,174.34

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Solution

The fourth proportional to 53,979.72, 81,380.62 and 50,174.34 is: 75,643.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,979.72 : 81,380.62 = 50,174.34 : x
  2. Step 2: Convert to fraction form
    53,979.72/81,380.62 = 50,174.34/x
  3. Step 3: Cross multiply
    53,979.72x = 81,380.62 × 50,174.34
  4. Step 4: Simplify right side
    53,979.72x = 4,083,218,795.95
  5. Step 5: Solve for x
    x = 4,083,218,795.95/53,979.72
  6. Step 6: Final answer
    x = 75,643.58

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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.