Finding the Fourth Proportional to 87,768.41, 121,119.90 and 47,482.05
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Solution
The fourth proportional to 87,768.41, 121,119.90 and 47,482.05 is: 65,524.96
Step by Step Solution
- Step 1: Write the proportion equation
87,768.41 : 121,119.90 = 47,482.05 : x - Step 2: Convert to fraction form
87,768.41/121,119.90 = 47,482.05/x - Step 3: Cross multiply
87,768.41x = 121,119.90 × 47,482.05 - Step 4: Simplify right side
87,768.41x = 5,751,021,147.80 - Step 5: Solve for x
x = 5,751,021,147.80/87,768.41 - Step 6: Final answer
x = 65,524.96
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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.