Finding the Fourth Proportional to 77,557.19, 116,336.21 and 27,639.18
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Solution
The fourth proportional to 77,557.19, 116,336.21 and 27,639.18 is: 41,458.92
Step by Step Solution
- Step 1: Write the proportion equation
77,557.19 : 116,336.21 = 27,639.18 : x - Step 2: Convert to fraction form
77,557.19/116,336.21 = 27,639.18/x - Step 3: Cross multiply
77,557.19x = 116,336.21 × 27,639.18 - Step 4: Simplify right side
77,557.19x = 3,215,437,310.51 - Step 5: Solve for x
x = 3,215,437,310.51/77,557.19 - Step 6: Final answer
x = 41,458.92
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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.