Home / 80,941.98-121,413.03-21,783.63

Finding the Fourth Proportional to 80,941.98, 121,413.03 and 21,783.63

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Solution

The fourth proportional to 80,941.98, 121,413.03 and 21,783.63 is: 32,675.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,941.98 : 121,413.03 = 21,783.63 : x
  2. Step 2: Convert to fraction form
    80,941.98/121,413.03 = 21,783.63/x
  3. Step 3: Cross multiply
    80,941.98x = 121,413.03 × 21,783.63
  4. Step 4: Simplify right side
    80,941.98x = 2,644,816,896.31
  5. Step 5: Solve for x
    x = 2,644,816,896.31/80,941.98
  6. Step 6: Final answer
    x = 32,675.46

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Similar ratio
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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.