Finding the Fourth Proportional to 72,959.84, 100,691.18 and 44,286.80
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Solution
The fourth proportional to 72,959.84, 100,691.18 and 44,286.80 is: 61,119.79
Step by Step Solution
- Step 1: Write the proportion equation
72,959.84 : 100,691.18 = 44,286.80 : x - Step 2: Convert to fraction form
72,959.84/100,691.18 = 44,286.80/x - Step 3: Cross multiply
72,959.84x = 100,691.18 × 44,286.80 - Step 4: Simplify right side
72,959.84x = 4,459,290,033.44 - Step 5: Solve for x
x = 4,459,290,033.44/72,959.84 - Step 6: Final answer
x = 61,119.79
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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.