Finding the Fourth Proportional to 79,036.68, 118,601.70 and 29,151.62
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Solution
The fourth proportional to 79,036.68, 118,601.70 and 29,151.62 is: 43,744.65
Step by Step Solution
- Step 1: Write the proportion equation
79,036.68 : 118,601.70 = 29,151.62 : x - Step 2: Convert to fraction form
79,036.68/118,601.70 = 29,151.62/x - Step 3: Cross multiply
79,036.68x = 118,601.70 × 29,151.62 - Step 4: Simplify right side
79,036.68x = 3,457,431,689.75 - Step 5: Solve for x
x = 3,457,431,689.75/79,036.68 - Step 6: Final answer
x = 43,744.65
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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.