Finding the Fourth Proportional to 68,959.68, 103,439.49 and 22,212.55
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Solution
The fourth proportional to 68,959.68, 103,439.49 and 22,212.55 is: 33,318.82
Step by Step Solution
- Step 1: Write the proportion equation
68,959.68 : 103,439.49 = 22,212.55 : x - Step 2: Convert to fraction form
68,959.68/103,439.49 = 22,212.55/x - Step 3: Cross multiply
68,959.68x = 103,439.49 × 22,212.55 - Step 4: Simplify right side
68,959.68x = 2,297,654,843.60 - Step 5: Solve for x
x = 2,297,654,843.60/68,959.68 - Step 6: Final answer
x = 33,318.82
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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.