Finding the Fourth Proportional to 81,816.20, 122,724.60 and 24,890.66
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Solution
The fourth proportional to 81,816.20, 122,724.60 and 24,890.66 is: 37,336.08
Step by Step Solution
- Step 1: Write the proportion equation
81,816.20 : 122,724.60 = 24,890.66 : x - Step 2: Convert to fraction form
81,816.20/122,724.60 = 24,890.66/x - Step 3: Cross multiply
81,816.20x = 122,724.60 × 24,890.66 - Step 4: Simplify right side
81,816.20x = 3,054,696,292.24 - Step 5: Solve for x
x = 3,054,696,292.24/81,816.20 - Step 6: Final answer
x = 37,336.08
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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.