Finding the Fourth Proportional to 84,750.58, 127,121.75 and 31,452.94
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Solution
The fourth proportional to 84,750.58, 127,121.75 and 31,452.94 is: 47,177.88
Step by Step Solution
- Step 1: Write the proportion equation
84,750.58 : 127,121.75 = 31,452.94 : x - Step 2: Convert to fraction form
84,750.58/127,121.75 = 31,452.94/x - Step 3: Cross multiply
84,750.58x = 127,121.75 × 31,452.94 - Step 4: Simplify right side
84,750.58x = 3,998,352,418.32 - Step 5: Solve for x
x = 3,998,352,418.32/84,750.58 - Step 6: Final answer
x = 47,177.88
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.