Finding the Fourth Proportional to 91,394.28, 126,104.74 and 53,646.44
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Solution
The fourth proportional to 91,394.28, 126,104.74 and 53,646.44 is: 74,020.72
Step by Step Solution
- Step 1: Write the proportion equation
91,394.28 : 126,104.74 = 53,646.44 : x - Step 2: Convert to fraction form
91,394.28/126,104.74 = 53,646.44/x - Step 3: Cross multiply
91,394.28x = 126,104.74 × 53,646.44 - Step 4: Simplify right side
91,394.28x = 6,765,070,368.13 - Step 5: Solve for x
x = 6,765,070,368.13/91,394.28 - Step 6: Final answer
x = 74,020.72
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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.