Finding the Fourth Proportional to 98,489.67, 135,910.16 and 58,207.19
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Solution
The fourth proportional to 98,489.67, 135,910.16 and 58,207.19 is: 80,322.61
Step by Step Solution
- Step 1: Write the proportion equation
98,489.67 : 135,910.16 = 58,207.19 : x - Step 2: Convert to fraction form
98,489.67/135,910.16 = 58,207.19/x - Step 3: Cross multiply
98,489.67x = 135,910.16 × 58,207.19 - Step 4: Simplify right side
98,489.67x = 7,910,947,535.46 - Step 5: Solve for x
x = 7,910,947,535.46/98,489.67 - Step 6: Final answer
x = 80,322.61
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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.