Finding the Fourth Proportional to 84,530.87, 126,748.90 and 57,906.94
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Solution
The fourth proportional to 84,530.87, 126,748.90 and 57,906.94 is: 86,827.94
Step by Step Solution
- Step 1: Write the proportion equation
84,530.87 : 126,748.90 = 57,906.94 : x - Step 2: Convert to fraction form
84,530.87/126,748.90 = 57,906.94/x - Step 3: Cross multiply
84,530.87x = 126,748.90 × 57,906.94 - Step 4: Simplify right side
84,530.87x = 7,339,640,947.37 - Step 5: Solve for x
x = 7,339,640,947.37/84,530.87 - Step 6: Final answer
x = 86,827.94
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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.