Finding the Fourth Proportional to 91,071.21, 125,677.70 and 50,785.46
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Solution
The fourth proportional to 91,071.21, 125,677.70 and 50,785.46 is: 70,083.62
Step by Step Solution
- Step 1: Write the proportion equation
91,071.21 : 125,677.70 = 50,785.46 : x - Step 2: Convert to fraction form
91,071.21/125,677.70 = 50,785.46/x - Step 3: Cross multiply
91,071.21x = 125,677.70 × 50,785.46 - Step 4: Simplify right side
91,071.21x = 6,382,599,806.24 - Step 5: Solve for x
x = 6,382,599,806.24/91,071.21 - Step 6: Final answer
x = 70,083.62
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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.