Finding the Fourth Proportional to 74,505.98, 102,817.69 and 40,514.48
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Solution
The fourth proportional to 74,505.98, 102,817.69 and 40,514.48 is: 55,909.68
Step by Step Solution
- Step 1: Write the proportion equation
74,505.98 : 102,817.69 = 40,514.48 : x - Step 2: Convert to fraction form
74,505.98/102,817.69 = 40,514.48/x - Step 3: Cross multiply
74,505.98x = 102,817.69 × 40,514.48 - Step 4: Simplify right side
74,505.98x = 4,165,605,245.15 - Step 5: Solve for x
x = 4,165,605,245.15/74,505.98 - Step 6: Final answer
x = 55,909.68
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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.