Finding the Fourth Proportional to 83,775.64, 115,616.12 and 46,049.88
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Solution
The fourth proportional to 83,775.64, 115,616.12 and 46,049.88 is: 63,551.99
Step by Step Solution
- Step 1: Write the proportion equation
83,775.64 : 115,616.12 = 46,049.88 : x - Step 2: Convert to fraction form
83,775.64/115,616.12 = 46,049.88/x - Step 3: Cross multiply
83,775.64x = 115,616.12 × 46,049.88 - Step 4: Simplify right side
83,775.64x = 5,324,108,452.07 - Step 5: Solve for x
x = 5,324,108,452.07/83,775.64 - Step 6: Final answer
x = 63,551.99
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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.