Finding the Fourth Proportional to 75,057.92, 103,485.84 and 48,152.96
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Solution
The fourth proportional to 75,057.92, 103,485.84 and 48,152.96 is: 66,390.72
Step by Step Solution
- Step 1: Write the proportion equation
75,057.92 : 103,485.84 = 48,152.96 : x - Step 2: Convert to fraction form
75,057.92/103,485.84 = 48,152.96/x - Step 3: Cross multiply
75,057.92x = 103,485.84 × 48,152.96 - Step 4: Simplify right side
75,057.92x = 4,983,149,514.09 - Step 5: Solve for x
x = 4,983,149,514.09/75,057.92 - Step 6: Final answer
x = 66,390.72
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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.