Finding the Fourth Proportional to 79,939.68, 110,316.15 and 44,129.73
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Solution
The fourth proportional to 79,939.68, 110,316.15 and 44,129.73 is: 60,898.69
Step by Step Solution
- Step 1: Write the proportion equation
79,939.68 : 110,316.15 = 44,129.73 : x - Step 2: Convert to fraction form
79,939.68/110,316.15 = 44,129.73/x - Step 3: Cross multiply
79,939.68x = 110,316.15 × 44,129.73 - Step 4: Simplify right side
79,939.68x = 4,868,221,914.14 - Step 5: Solve for x
x = 4,868,221,914.14/79,939.68 - Step 6: Final answer
x = 60,898.69
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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.