Finding the Fourth Proportional to 74,957.06, 103,440.84 and 41,423.06
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Solution
The fourth proportional to 74,957.06, 103,440.84 and 41,423.06 is: 57,163.88
Step by Step Solution
- Step 1: Write the proportion equation
74,957.06 : 103,440.84 = 41,423.06 : x - Step 2: Convert to fraction form
74,957.06/103,440.84 = 41,423.06/x - Step 3: Cross multiply
74,957.06x = 103,440.84 × 41,423.06 - Step 4: Simplify right side
74,957.06x = 4,284,836,121.77 - Step 5: Solve for x
x = 4,284,836,121.77/74,957.06 - Step 6: Final answer
x = 57,163.88
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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.