Home / 40,083.75-60,132.90-13,782.65

Finding the Fourth Proportional to 40,083.75, 60,132.90 and 13,782.65

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Solution

The fourth proportional to 40,083.75, 60,132.90 and 13,782.65 is: 20,676.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,083.75 : 60,132.90 = 13,782.65 : x
  2. Step 2: Convert to fraction form
    40,083.75/60,132.90 = 13,782.65/x
  3. Step 3: Cross multiply
    40,083.75x = 60,132.90 × 13,782.65
  4. Step 4: Simplify right side
    40,083.75x = 828,790,413.52
  5. Step 5: Solve for x
    x = 828,790,413.52/40,083.75
  6. Step 6: Final answer
    x = 20,676.47

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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.