Finding the Fourth Proportional to 75,124.09, 112,691.99 and 21,816.94
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Solution
The fourth proportional to 75,124.09, 112,691.99 and 21,816.94 is: 32,727.11
Step by Step Solution
- Step 1: Write the proportion equation
75,124.09 : 112,691.99 = 21,816.94 : x - Step 2: Convert to fraction form
75,124.09/112,691.99 = 21,816.94/x - Step 3: Cross multiply
75,124.09x = 112,691.99 × 21,816.94 - Step 4: Simplify right side
75,124.09x = 2,458,594,243.16 - Step 5: Solve for x
x = 2,458,594,243.16/75,124.09 - Step 6: Final answer
x = 32,727.11
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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.