Home / 57,413.55-86,129.56-19,984.26

Finding the Fourth Proportional to 57,413.55, 86,129.56 and 19,984.26

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Solution

The fourth proportional to 57,413.55, 86,129.56 and 19,984.26 is: 29,979.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,413.55 : 86,129.56 = 19,984.26 : x
  2. Step 2: Convert to fraction form
    57,413.55/86,129.56 = 19,984.26/x
  3. Step 3: Cross multiply
    57,413.55x = 86,129.56 × 19,984.26
  4. Step 4: Simplify right side
    57,413.55x = 1,721,235,147.78
  5. Step 5: Solve for x
    x = 1,721,235,147.78/57,413.55
  6. Step 6: Final answer
    x = 29,979.60

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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.