Finding the Fourth Proportional to 84,125.92, 115,857.56 and 82,288.84
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Solution
The fourth proportional to 84,125.92, 115,857.56 and 82,288.84 is: 113,327.54
Step by Step Solution
- Step 1: Write the proportion equation
84,125.92 : 115,857.56 = 82,288.84 : x - Step 2: Convert to fraction form
84,125.92/115,857.56 = 82,288.84/x - Step 3: Cross multiply
84,125.92x = 115,857.56 × 82,288.84 - Step 4: Simplify right side
84,125.92x = 9,533,783,806.19 - Step 5: Solve for x
x = 9,533,783,806.19/84,125.92 - Step 6: Final answer
x = 113,327.54
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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.