Home / 326,659.92-489,945.24-89,968.56

Finding the Fourth Proportional to 326,659.92, 489,945.24 and 89,968.56

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Solution

The fourth proportional to 326,659.92, 489,945.24 and 89,968.56 is: 134,940.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,659.92 : 489,945.24 = 89,968.56 : x
  2. Step 2: Convert to fraction form
    326,659.92/489,945.24 = 89,968.56/x
  3. Step 3: Cross multiply
    326,659.92x = 489,945.24 × 89,968.56
  4. Step 4: Simplify right side
    326,659.92x = 44,079,667,721.65
  5. Step 5: Solve for x
    x = 44,079,667,721.65/326,659.92
  6. Step 6: Final answer
    x = 134,940.55

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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.