Finding the Fourth Proportional to 87,716.58, 121,041.57 and 49,474.02
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Solution
The fourth proportional to 87,716.58, 121,041.57 and 49,474.02 is: 68,270.02
Step by Step Solution
- Step 1: Write the proportion equation
87,716.58 : 121,041.57 = 49,474.02 : x - Step 2: Convert to fraction form
87,716.58/121,041.57 = 49,474.02/x - Step 3: Cross multiply
87,716.58x = 121,041.57 × 49,474.02 - Step 4: Simplify right side
87,716.58x = 5,988,413,055.01 - Step 5: Solve for x
x = 5,988,413,055.01/87,716.58 - Step 6: Final answer
x = 68,270.02
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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.