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Finding the Fourth Proportional to 53,551.60, 80,413.80 and 40,418.80

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Solution

The fourth proportional to 53,551.60, 80,413.80 and 40,418.80 is: 60,693.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,551.60 : 80,413.80 = 40,418.80 : x
  2. Step 2: Convert to fraction form
    53,551.60/80,413.80 = 40,418.80/x
  3. Step 3: Cross multiply
    53,551.60x = 80,413.80 × 40,418.80
  4. Step 4: Simplify right side
    53,551.60x = 3,250,229,299.44
  5. Step 5: Solve for x
    x = 3,250,229,299.44/53,551.60
  6. Step 6: Final answer
    x = 60,693.41

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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.