Finding the Fourth Proportional to 84,466.45, 126,658.68 and 31,880.08
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Solution
The fourth proportional to 84,466.45, 126,658.68 and 31,880.08 is: 47,804.65
Step by Step Solution
- Step 1: Write the proportion equation
84,466.45 : 126,658.68 = 31,880.08 : x - Step 2: Convert to fraction form
84,466.45/126,658.68 = 31,880.08/x - Step 3: Cross multiply
84,466.45x = 126,658.68 × 31,880.08 - Step 4: Simplify right side
84,466.45x = 4,037,888,851.09 - Step 5: Solve for x
x = 4,037,888,851.09/84,466.45 - Step 6: Final answer
x = 47,804.65
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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.