Finding the Fourth Proportional to 91,073.34, 125,715.84 and 68,477.96
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Solution
The fourth proportional to 91,073.34, 125,715.84 and 68,477.96 is: 94,525.62
Step by Step Solution
- Step 1: Write the proportion equation
91,073.34 : 125,715.84 = 68,477.96 : x - Step 2: Convert to fraction form
91,073.34/125,715.84 = 68,477.96/x - Step 3: Cross multiply
91,073.34x = 125,715.84 × 68,477.96 - Step 4: Simplify right side
91,073.34x = 8,608,763,634.31 - Step 5: Solve for x
x = 8,608,763,634.31/91,073.34 - Step 6: Final answer
x = 94,525.62
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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.