Finding the Fourth Proportional to 79,939.24, 110,316.16 and 44,129.28
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Solution
The fourth proportional to 79,939.24, 110,316.16 and 44,129.28 is: 60,898.41
Step by Step Solution
- Step 1: Write the proportion equation
79,939.24 : 110,316.16 = 44,129.28 : x - Step 2: Convert to fraction form
79,939.24/110,316.16 = 44,129.28/x - Step 3: Cross multiply
79,939.24x = 110,316.16 × 44,129.28 - Step 4: Simplify right side
79,939.24x = 4,868,172,713.16 - Step 5: Solve for x
x = 4,868,172,713.16/79,939.24 - Step 6: Final answer
x = 60,898.41
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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.