Finding the Fourth Proportional to 85,249.64, 117,630.74 and 51,249.98
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Solution
The fourth proportional to 85,249.64, 117,630.74 and 51,249.98 is: 70,716.70
Step by Step Solution
- Step 1: Write the proportion equation
85,249.64 : 117,630.74 = 51,249.98 : x - Step 2: Convert to fraction form
85,249.64/117,630.74 = 51,249.98/x - Step 3: Cross multiply
85,249.64x = 117,630.74 × 51,249.98 - Step 4: Simplify right side
85,249.64x = 6,028,573,494.59 - Step 5: Solve for x
x = 6,028,573,494.59/85,249.64 - Step 6: Final answer
x = 70,716.70
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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.