Finding the Fourth Proportional to 81,884.88, 122,828.84 and 25,723.94
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Solution
The fourth proportional to 81,884.88, 122,828.84 and 25,723.94 is: 38,586.38
Step by Step Solution
- Step 1: Write the proportion equation
81,884.88 : 122,828.84 = 25,723.94 : x - Step 2: Convert to fraction form
81,884.88/122,828.84 = 25,723.94/x - Step 3: Cross multiply
81,884.88x = 122,828.84 × 25,723.94 - Step 4: Simplify right side
81,884.88x = 3,159,641,064.13 - Step 5: Solve for x
x = 3,159,641,064.13/81,884.88 - Step 6: Final answer
x = 38,586.38
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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.