Finding the Fourth Proportional to 84,247.31, 126,368.52 and 34,315.05
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Solution
The fourth proportional to 84,247.31, 126,368.52 and 34,315.05 is: 51,471.58
Step by Step Solution
- Step 1: Write the proportion equation
84,247.31 : 126,368.52 = 34,315.05 : x - Step 2: Convert to fraction form
84,247.31/126,368.52 = 34,315.05/x - Step 3: Cross multiply
84,247.31x = 126,368.52 × 34,315.05 - Step 4: Simplify right side
84,247.31x = 4,336,342,082.23 - Step 5: Solve for x
x = 4,336,342,082.23/84,247.31 - Step 6: Final answer
x = 51,471.58
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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.