Finding the Fourth Proportional to 98,767.77, 136,299.88 and 53,445.75
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Solution
The fourth proportional to 98,767.77, 136,299.88 and 53,445.75 is: 73,755.33
Step by Step Solution
- Step 1: Write the proportion equation
98,767.77 : 136,299.88 = 53,445.75 : x - Step 2: Convert to fraction form
98,767.77/136,299.88 = 53,445.75/x - Step 3: Cross multiply
98,767.77x = 136,299.88 × 53,445.75 - Step 4: Simplify right side
98,767.77x = 7,284,649,734.09 - Step 5: Solve for x
x = 7,284,649,734.09/98,767.77 - Step 6: Final answer
x = 73,755.33
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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.