Finding the Fourth Proportional to 84,268.54, 126,439.69 and 39,926.94
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Solution
The fourth proportional to 84,268.54, 126,439.69 and 39,926.94 is: 59,907.88
Step by Step Solution
- Step 1: Write the proportion equation
84,268.54 : 126,439.69 = 39,926.94 : x - Step 2: Convert to fraction form
84,268.54/126,439.69 = 39,926.94/x - Step 3: Cross multiply
84,268.54x = 126,439.69 × 39,926.94 - Step 4: Simplify right side
84,268.54x = 5,048,349,916.25 - Step 5: Solve for x
x = 5,048,349,916.25/84,268.54 - Step 6: Final answer
x = 59,907.88
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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.