Finding the Fourth Proportional to 77,836.68, 107,329.68 and 52,642.44
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Solution
The fourth proportional to 77,836.68, 107,329.68 and 52,642.44 is: 72,589.12
Step by Step Solution
- Step 1: Write the proportion equation
77,836.68 : 107,329.68 = 52,642.44 : x - Step 2: Convert to fraction form
77,836.68/107,329.68 = 52,642.44/x - Step 3: Cross multiply
77,836.68x = 107,329.68 × 52,642.44 - Step 4: Simplify right side
77,836.68x = 5,650,096,239.62 - Step 5: Solve for x
x = 5,650,096,239.62/77,836.68 - Step 6: Final answer
x = 72,589.12
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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.