Finding the Fourth Proportional to 97,914.70, 135,110.34 and 54,884.26
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Solution
The fourth proportional to 97,914.70, 135,110.34 and 54,884.26 is: 75,733.58
Step by Step Solution
- Step 1: Write the proportion equation
97,914.70 : 135,110.34 = 54,884.26 : x - Step 2: Convert to fraction form
97,914.70/135,110.34 = 54,884.26/x - Step 3: Cross multiply
97,914.70x = 135,110.34 × 54,884.26 - Step 4: Simplify right side
97,914.70x = 7,415,431,029.25 - Step 5: Solve for x
x = 7,415,431,029.25/97,914.70 - Step 6: Final answer
x = 75,733.58
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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.