Finding the Fourth Proportional to 79,049.26, 109,088.84 and 43,238.49
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Solution
The fourth proportional to 79,049.26, 109,088.84 and 43,238.49 is: 59,669.59
Step by Step Solution
- Step 1: Write the proportion equation
79,049.26 : 109,088.84 = 43,238.49 : x - Step 2: Convert to fraction form
79,049.26/109,088.84 = 43,238.49/x - Step 3: Cross multiply
79,049.26x = 109,088.84 × 43,238.49 - Step 4: Simplify right side
79,049.26x = 4,716,836,717.45 - Step 5: Solve for x
x = 4,716,836,717.45/79,049.26 - Step 6: Final answer
x = 59,669.59
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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.