Finding the Fourth Proportional to 80,922.73, 121,396.40 and 21,763.02
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Solution
The fourth proportional to 80,922.73, 121,396.40 and 21,763.02 is: 32,647.84
Step by Step Solution
- Step 1: Write the proportion equation
80,922.73 : 121,396.40 = 21,763.02 : x - Step 2: Convert to fraction form
80,922.73/121,396.40 = 21,763.02/x - Step 3: Cross multiply
80,922.73x = 121,396.40 × 21,763.02 - Step 4: Simplify right side
80,922.73x = 2,641,952,281.13 - Step 5: Solve for x
x = 2,641,952,281.13/80,922.73 - Step 6: Final answer
x = 32,647.84
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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.