Finding the Fourth Proportional to 68,959.68, 103,438.56 and 22,212.80
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Solution
The fourth proportional to 68,959.68, 103,438.56 and 22,212.80 is: 33,318.89
Step by Step Solution
- Step 1: Write the proportion equation
68,959.68 : 103,438.56 = 22,212.80 : x - Step 2: Convert to fraction form
68,959.68/103,438.56 = 22,212.80/x - Step 3: Cross multiply
68,959.68x = 103,438.56 × 22,212.80 - Step 4: Simplify right side
68,959.68x = 2,297,660,045.57 - Step 5: Solve for x
x = 2,297,660,045.57/68,959.68 - Step 6: Final answer
x = 33,318.89
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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.