Finding the Fourth Proportional to 81,235.51, 121,808.00 and 25,059.68
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Solution
The fourth proportional to 81,235.51, 121,808.00 and 25,059.68 is: 37,575.56
Step by Step Solution
- Step 1: Write the proportion equation
81,235.51 : 121,808.00 = 25,059.68 : x - Step 2: Convert to fraction form
81,235.51/121,808.00 = 25,059.68/x - Step 3: Cross multiply
81,235.51x = 121,808.00 × 25,059.68 - Step 4: Simplify right side
81,235.51x = 3,052,469,411.83 - Step 5: Solve for x
x = 3,052,469,411.83/81,235.51 - Step 6: Final answer
x = 37,575.56
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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.