Finding the Fourth Proportional to 87,658.14, 120,969.27 and 47,914.14
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Solution
The fourth proportional to 87,658.14, 120,969.27 and 47,914.14 is: 66,122.08
Step by Step Solution
- Step 1: Write the proportion equation
87,658.14 : 120,969.27 = 47,914.14 : x - Step 2: Convert to fraction form
87,658.14/120,969.27 = 47,914.14/x - Step 3: Cross multiply
87,658.14x = 120,969.27 × 47,914.14 - Step 4: Simplify right side
87,658.14x = 5,796,138,538.48 - Step 5: Solve for x
x = 5,796,138,538.48/87,658.14 - Step 6: Final answer
x = 66,122.08
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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.