Finding the Fourth Proportional to 129,285.27, 193,927.95 and 40,546.53
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Solution
The fourth proportional to 129,285.27, 193,927.95 and 40,546.53 is: 60,819.81
Step by Step Solution
- Step 1: Write the proportion equation
129,285.27 : 193,927.95 = 40,546.53 : x - Step 2: Convert to fraction form
129,285.27/193,927.95 = 40,546.53/x - Step 3: Cross multiply
129,285.27x = 193,927.95 × 40,546.53 - Step 4: Simplify right side
129,285.27x = 7,863,105,442.51 - Step 5: Solve for x
x = 7,863,105,442.51/129,285.27 - Step 6: Final answer
x = 60,819.81
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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.