Finding the Fourth Proportional to 74,586.78, 102,942.54 and 47,727.99
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Solution
The fourth proportional to 74,586.78, 102,942.54 and 47,727.99 is: 65,872.81
Step by Step Solution
- Step 1: Write the proportion equation
74,586.78 : 102,942.54 = 47,727.99 : x - Step 2: Convert to fraction form
74,586.78/102,942.54 = 47,727.99/x - Step 3: Cross multiply
74,586.78x = 102,942.54 × 47,727.99 - Step 4: Simplify right side
74,586.78x = 4,913,240,519.69 - Step 5: Solve for x
x = 4,913,240,519.69/74,586.78 - Step 6: Final answer
x = 65,872.81
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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.