Finding the Fourth Proportional to 75,026.26, 112,539.50 and 30,653.05
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Solution
The fourth proportional to 75,026.26, 112,539.50 and 30,653.05 is: 45,979.62
Step by Step Solution
- Step 1: Write the proportion equation
75,026.26 : 112,539.50 = 30,653.05 : x - Step 2: Convert to fraction form
75,026.26/112,539.50 = 30,653.05/x - Step 3: Cross multiply
75,026.26x = 112,539.50 × 30,653.05 - Step 4: Simplify right side
75,026.26x = 3,449,678,920.48 - Step 5: Solve for x
x = 3,449,678,920.48/75,026.26 - Step 6: Final answer
x = 45,979.62
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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.