Finding the Fourth Proportional to 81,310.93, 121,964.91 and 33,951.49
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Solution
The fourth proportional to 81,310.93, 121,964.91 and 33,951.49 is: 50,926.61
Step by Step Solution
- Step 1: Write the proportion equation
81,310.93 : 121,964.91 = 33,951.49 : x - Step 2: Convert to fraction form
81,310.93/121,964.91 = 33,951.49/x - Step 3: Cross multiply
81,310.93x = 121,964.91 × 33,951.49 - Step 4: Simplify right side
81,310.93x = 4,140,890,422.22 - Step 5: Solve for x
x = 4,140,890,422.22/81,310.93 - Step 6: Final answer
x = 50,926.61
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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.