Finding the Fourth Proportional to 84,150.58, 126,226.98 and 27,990.70
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Solution
The fourth proportional to 84,150.58, 126,226.98 and 27,990.70 is: 41,986.42
Step by Step Solution
- Step 1: Write the proportion equation
84,150.58 : 126,226.98 = 27,990.70 : x - Step 2: Convert to fraction form
84,150.58/126,226.98 = 27,990.70/x - Step 3: Cross multiply
84,150.58x = 126,226.98 × 27,990.70 - Step 4: Simplify right side
84,150.58x = 3,533,181,529.09 - Step 5: Solve for x
x = 3,533,181,529.09/84,150.58 - Step 6: Final answer
x = 41,986.42
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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.