Finding the Fourth Proportional to 79,990.74, 110,382.75 and 44,179.83
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Solution
The fourth proportional to 79,990.74, 110,382.75 and 44,179.83 is: 60,965.70
Step by Step Solution
- Step 1: Write the proportion equation
79,990.74 : 110,382.75 = 44,179.83 : x - Step 2: Convert to fraction form
79,990.74/110,382.75 = 44,179.83/x - Step 3: Cross multiply
79,990.74x = 110,382.75 × 44,179.83 - Step 4: Simplify right side
79,990.74x = 4,876,691,129.93 - Step 5: Solve for x
x = 4,876,691,129.93/79,990.74 - Step 6: Final answer
x = 60,965.70
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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.