Finding the Fourth Proportional to 79,268.44, 109,294.80 and 68,493.84
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Solution
The fourth proportional to 79,268.44, 109,294.80 and 68,493.84 is: 94,438.85
Step by Step Solution
- Step 1: Write the proportion equation
79,268.44 : 109,294.80 = 68,493.84 : x - Step 2: Convert to fraction form
79,268.44/109,294.80 = 68,493.84/x - Step 3: Cross multiply
79,268.44x = 109,294.80 × 68,493.84 - Step 4: Simplify right side
79,268.44x = 7,486,020,544.03 - Step 5: Solve for x
x = 7,486,020,544.03/79,268.44 - Step 6: Final answer
x = 94,438.85
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.