Finding the Fourth Proportional to 67,394.29, 101,091.44 and 20,641.09
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Solution
The fourth proportional to 67,394.29, 101,091.44 and 20,641.09 is: 30,961.64
Step by Step Solution
- Step 1: Write the proportion equation
67,394.29 : 101,091.44 = 20,641.09 : x - Step 2: Convert to fraction form
67,394.29/101,091.44 = 20,641.09/x - Step 3: Cross multiply
67,394.29x = 101,091.44 × 20,641.09 - Step 4: Simplify right side
67,394.29x = 2,086,637,408.06 - Step 5: Solve for x
x = 2,086,637,408.06/67,394.29 - Step 6: Final answer
x = 30,961.64
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Similar ratio
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.