Finding the Fourth Proportional to 81,865.69, 122,732.01 and 36,853.99
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Solution
The fourth proportional to 81,865.69, 122,732.01 and 36,853.99 is: 55,251.03
Step by Step Solution
- Step 1: Write the proportion equation
81,865.69 : 122,732.01 = 36,853.99 : x - Step 2: Convert to fraction form
81,865.69/122,732.01 = 36,853.99/x - Step 3: Cross multiply
81,865.69x = 122,732.01 × 36,853.99 - Step 4: Simplify right side
81,865.69x = 4,523,163,962.39 - Step 5: Solve for x
x = 4,523,163,962.39/81,865.69 - Step 6: Final answer
x = 55,251.03
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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.