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Finding the Fourth Proportional to 84,571.16, 126,858.83 and 28,413.23

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Solution

The fourth proportional to 84,571.16, 126,858.83 and 28,413.23 is: 42,620.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,571.16 : 126,858.83 = 28,413.23 : x
  2. Step 2: Convert to fraction form
    84,571.16/126,858.83 = 28,413.23/x
  3. Step 3: Cross multiply
    84,571.16x = 126,858.83 × 28,413.23
  4. Step 4: Simplify right side
    84,571.16x = 3,604,468,337.96
  5. Step 5: Solve for x
    x = 3,604,468,337.96/84,571.16
  6. Step 6: Final answer
    x = 42,620.54

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1.5x scale

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.