Finding the Fourth Proportional to 85,721.68, 118,293.64 and 48,000.08
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Solution
The fourth proportional to 85,721.68, 118,293.64 and 48,000.08 is: 66,238.83
Step by Step Solution
- Step 1: Write the proportion equation
85,721.68 : 118,293.64 = 48,000.08 : x - Step 2: Convert to fraction form
85,721.68/118,293.64 = 48,000.08/x - Step 3: Cross multiply
85,721.68x = 118,293.64 × 48,000.08 - Step 4: Simplify right side
85,721.68x = 5,678,104,183.49 - Step 5: Solve for x
x = 5,678,104,183.49/85,721.68 - Step 6: Final answer
x = 66,238.83
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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.