Finding the Fourth Proportional to 83,452.75, 115,164.80 and 49,918.75
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Solution
The fourth proportional to 83,452.75, 115,164.80 and 49,918.75 is: 68,887.88
Step by Step Solution
- Step 1: Write the proportion equation
83,452.75 : 115,164.80 = 49,918.75 : x - Step 2: Convert to fraction form
83,452.75/115,164.80 = 49,918.75/x - Step 3: Cross multiply
83,452.75x = 115,164.80 × 49,918.75 - Step 4: Simplify right side
83,452.75x = 5,748,882,860 - Step 5: Solve for x
x = 5,748,882,860/83,452.75 - Step 6: Final answer
x = 68,887.88
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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.