Finding the Fourth Proportional to 83,608.08, 115,380.99 and 45,882.42
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Solution
The fourth proportional to 83,608.08, 115,380.99 and 45,882.42 is: 63,318.75
Step by Step Solution
- Step 1: Write the proportion equation
83,608.08 : 115,380.99 = 45,882.42 : x - Step 2: Convert to fraction form
83,608.08/115,380.99 = 45,882.42/x - Step 3: Cross multiply
83,608.08x = 115,380.99 × 45,882.42 - Step 4: Simplify right side
83,608.08x = 5,293,959,043.20 - Step 5: Solve for x
x = 5,293,959,043.20/83,608.08 - Step 6: Final answer
x = 63,318.75
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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.