Finding the Fourth Proportional to 68,628.06, 102,920.22 and 21,870
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Solution
The fourth proportional to 68,628.06, 102,920.22 and 21,870 is: 32,798.03
Step by Step Solution
- Step 1: Write the proportion equation
68,628.06 : 102,920.22 = 21,870 : x - Step 2: Convert to fraction form
68,628.06/102,920.22 = 21,870/x - Step 3: Cross multiply
68,628.06x = 102,920.22 × 21,870 - Step 4: Simplify right side
68,628.06x = 2,250,865,211.40 - Step 5: Solve for x
x = 2,250,865,211.40/68,628.06 - Step 6: Final answer
x = 32,798.03
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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.