Finding the Fourth Proportional to 86,049.36, 129,074.04 and 26,890.08
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Solution
The fourth proportional to 86,049.36, 129,074.04 and 26,890.08 is: 40,335.12
Step by Step Solution
- Step 1: Write the proportion equation
86,049.36 : 129,074.04 = 26,890.08 : x - Step 2: Convert to fraction form
86,049.36/129,074.04 = 26,890.08/x - Step 3: Cross multiply
86,049.36x = 129,074.04 × 26,890.08 - Step 4: Simplify right side
86,049.36x = 3,470,811,261.52 - Step 5: Solve for x
x = 3,470,811,261.52/86,049.36 - Step 6: Final answer
x = 40,335.12
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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.