Home / 43,413.12-65,129.50-13,832.64

Finding the Fourth Proportional to 43,413.12, 65,129.50 and 13,832.64

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Solution

The fourth proportional to 43,413.12, 65,129.50 and 13,832.64 is: 20,752.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,413.12 : 65,129.50 = 13,832.64 : x
  2. Step 2: Convert to fraction form
    43,413.12/65,129.50 = 13,832.64/x
  3. Step 3: Cross multiply
    43,413.12x = 65,129.50 × 13,832.64
  4. Step 4: Simplify right side
    43,413.12x = 900,912,926.88
  5. Step 5: Solve for x
    x = 900,912,926.88/43,413.12
  6. Step 6: Final answer
    x = 20,752.09

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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.