Finding the Fourth Proportional to 84,775.56, 116,989.68 and 47,049.84
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Solution
The fourth proportional to 84,775.56, 116,989.68 and 47,049.84 is: 64,928.45
Step by Step Solution
- Step 1: Write the proportion equation
84,775.56 : 116,989.68 = 47,049.84 : x - Step 2: Convert to fraction form
84,775.56/116,989.68 = 47,049.84/x - Step 3: Cross multiply
84,775.56x = 116,989.68 × 47,049.84 - Step 4: Simplify right side
84,775.56x = 5,504,345,725.65 - Step 5: Solve for x
x = 5,504,345,725.65/84,775.56 - Step 6: Final answer
x = 64,928.45
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1.5x scale
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.