Finding the Fourth Proportional to 87,718.07, 121,052.21 and 49,479.44
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Solution
The fourth proportional to 87,718.07, 121,052.21 and 49,479.44 is: 68,282.35
Step by Step Solution
- Step 1: Write the proportion equation
87,718.07 : 121,052.21 = 49,479.44 : x - Step 2: Convert to fraction form
87,718.07/121,052.21 = 49,479.44/x - Step 3: Cross multiply
87,718.07x = 121,052.21 × 49,479.44 - Step 4: Simplify right side
87,718.07x = 5,989,595,561.56 - Step 5: Solve for x
x = 5,989,595,561.56/87,718.07 - Step 6: Final answer
x = 68,282.35
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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.