Home / 87,587.93-131,399.21-31,413.02

Finding the Fourth Proportional to 87,587.93, 131,399.21 and 31,413.02

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Solution

The fourth proportional to 87,587.93, 131,399.21 and 31,413.02 is: 47,125.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,587.93 : 131,399.21 = 31,413.02 : x
  2. Step 2: Convert to fraction form
    87,587.93/131,399.21 = 31,413.02/x
  3. Step 3: Cross multiply
    87,587.93x = 131,399.21 × 31,413.02
  4. Step 4: Simplify right side
    87,587.93x = 4,127,645,433.25
  5. Step 5: Solve for x
    x = 4,127,645,433.25/87,587.93
  6. Step 6: Final answer
    x = 47,125.73

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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.