Finding the Fourth Proportional to 83,990.68, 125,923.49 and 36,596.80
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Solution
The fourth proportional to 83,990.68, 125,923.49 and 36,596.80 is: 54,867.95
Step by Step Solution
- Step 1: Write the proportion equation
83,990.68 : 125,923.49 = 36,596.80 : x - Step 2: Convert to fraction form
83,990.68/125,923.49 = 36,596.80/x - Step 3: Cross multiply
83,990.68x = 125,923.49 × 36,596.80 - Step 4: Simplify right side
83,990.68x = 4,608,396,778.83 - Step 5: Solve for x
x = 4,608,396,778.83/83,990.68 - Step 6: Final answer
x = 54,867.95
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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.