Finding the Fourth Proportional to 75,524.70, 104,330.34 and 71,538.96
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Solution
The fourth proportional to 75,524.70, 104,330.34 and 71,538.96 is: 98,824.41
Step by Step Solution
- Step 1: Write the proportion equation
75,524.70 : 104,330.34 = 71,538.96 : x - Step 2: Convert to fraction form
75,524.70/104,330.34 = 71,538.96/x - Step 3: Cross multiply
75,524.70x = 104,330.34 × 71,538.96 - Step 4: Simplify right side
75,524.70x = 7,463,684,020.05 - Step 5: Solve for x
x = 7,463,684,020.05/75,524.70 - Step 6: Final answer
x = 98,824.41
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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.