Finding the Fourth Proportional to 77,383.26, 115,919.37 and 40,369.50
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Solution
The fourth proportional to 77,383.26, 115,919.37 and 40,369.50 is: 60,473.12
Step by Step Solution
- Step 1: Write the proportion equation
77,383.26 : 115,919.37 = 40,369.50 : x - Step 2: Convert to fraction form
77,383.26/115,919.37 = 40,369.50/x - Step 3: Cross multiply
77,383.26x = 115,919.37 × 40,369.50 - Step 4: Simplify right side
77,383.26x = 4,679,607,007.22 - Step 5: Solve for x
x = 4,679,607,007.22/77,383.26 - Step 6: Final answer
x = 60,473.12
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.