Finding the Fourth Proportional to 77,580.96, 107,073.27 and 47,383.62
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Solution
The fourth proportional to 77,580.96, 107,073.27 and 47,383.62 is: 65,396.45
Step by Step Solution
- Step 1: Write the proportion equation
77,580.96 : 107,073.27 = 47,383.62 : x - Step 2: Convert to fraction form
77,580.96/107,073.27 = 47,383.62/x - Step 3: Cross multiply
77,580.96x = 107,073.27 × 47,383.62 - Step 4: Simplify right side
77,580.96x = 5,073,519,137.84 - Step 5: Solve for x
x = 5,073,519,137.84/77,580.96 - Step 6: Final answer
x = 65,396.45
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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.