Finding the Fourth Proportional to 98,770.98, 136,302.90 and 53,447.96
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Solution
The fourth proportional to 98,770.98, 136,302.90 and 53,447.96 is: 73,757.62
Step by Step Solution
- Step 1: Write the proportion equation
98,770.98 : 136,302.90 = 53,447.96 : x - Step 2: Convert to fraction form
98,770.98/136,302.90 = 53,447.96/x - Step 3: Cross multiply
98,770.98x = 136,302.90 × 53,447.96 - Step 4: Simplify right side
98,770.98x = 7,285,111,947.08 - Step 5: Solve for x
x = 7,285,111,947.08/98,770.98 - Step 6: Final answer
x = 73,757.62
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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.