Finding the Fourth Proportional to 98,570.75, 136,027.64 and 53,858.75
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Solution
The fourth proportional to 98,570.75, 136,027.64 and 53,858.75 is: 74,325.08
Step by Step Solution
- Step 1: Write the proportion equation
98,570.75 : 136,027.64 = 53,858.75 : x - Step 2: Convert to fraction form
98,570.75/136,027.64 = 53,858.75/x - Step 3: Cross multiply
98,570.75x = 136,027.64 × 53,858.75 - Step 4: Simplify right side
98,570.75x = 7,326,278,655.85 - Step 5: Solve for x
x = 7,326,278,655.85/98,570.75 - Step 6: Final answer
x = 74,325.08
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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.