Finding the Fourth Proportional to 80,858.40, 121,268.35 and 35,855.07
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Solution
The fourth proportional to 80,858.40, 121,268.35 and 35,855.07 is: 53,774.07
Step by Step Solution
- Step 1: Write the proportion equation
80,858.40 : 121,268.35 = 35,855.07 : x - Step 2: Convert to fraction form
80,858.40/121,268.35 = 35,855.07/x - Step 3: Cross multiply
80,858.40x = 121,268.35 × 35,855.07 - Step 4: Simplify right side
80,858.40x = 4,348,084,989.05 - Step 5: Solve for x
x = 4,348,084,989.05/80,858.40 - Step 6: Final answer
x = 53,774.07
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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.