Finding the Fourth Proportional to 77,639.62, 107,195.79 and 59,458.26
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Solution
The fourth proportional to 77,639.62, 107,195.79 and 59,458.26 is: 82,093.08
Step by Step Solution
- Step 1: Write the proportion equation
77,639.62 : 107,195.79 = 59,458.26 : x - Step 2: Convert to fraction form
77,639.62/107,195.79 = 59,458.26/x - Step 3: Cross multiply
77,639.62x = 107,195.79 × 59,458.26 - Step 4: Simplify right side
77,639.62x = 6,373,674,855.43 - Step 5: Solve for x
x = 6,373,674,855.43/77,639.62 - Step 6: Final answer
x = 82,093.08
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1.5x scale
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.