Finding the Fourth Proportional to 98,133.70, 135,431.50 and 55,694.96
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Solution
The fourth proportional to 98,133.70, 135,431.50 and 55,694.96 is: 76,863.02
Step by Step Solution
- Step 1: Write the proportion equation
98,133.70 : 135,431.50 = 55,694.96 : x - Step 2: Convert to fraction form
98,133.70/135,431.50 = 55,694.96/x - Step 3: Cross multiply
98,133.70x = 135,431.50 × 55,694.96 - Step 4: Simplify right side
98,133.70x = 7,542,851,975.24 - Step 5: Solve for x
x = 7,542,851,975.24/98,133.70 - Step 6: Final answer
x = 76,863.02
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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.