Finding the Fourth Proportional to 80,899.07, 121,389.62 and 54,548.44
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Solution
The fourth proportional to 80,899.07, 121,389.62 and 54,548.44 is: 81,850.31
Step by Step Solution
- Step 1: Write the proportion equation
80,899.07 : 121,389.62 = 54,548.44 : x - Step 2: Convert to fraction form
80,899.07/121,389.62 = 54,548.44/x - Step 3: Cross multiply
80,899.07x = 121,389.62 × 54,548.44 - Step 4: Simplify right side
80,899.07x = 6,621,613,826.98 - Step 5: Solve for x
x = 6,621,613,826.98/80,899.07 - Step 6: Final answer
x = 81,850.31
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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.