Finding the Fourth Proportional to 79,821.78, 110,159.01 and 44,011.68
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Solution
The fourth proportional to 79,821.78, 110,159.01 and 44,011.68 is: 60,738.85
Step by Step Solution
- Step 1: Write the proportion equation
79,821.78 : 110,159.01 = 44,011.68 : x - Step 2: Convert to fraction form
79,821.78/110,159.01 = 44,011.68/x - Step 3: Cross multiply
79,821.78x = 110,159.01 × 44,011.68 - Step 4: Simplify right side
79,821.78x = 4,848,283,097.24 - Step 5: Solve for x
x = 4,848,283,097.24/79,821.78 - Step 6: Final answer
x = 60,738.85
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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.