Finding the Fourth Proportional to 80,451.74, 120,679.14 and 27,862.94
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Solution
The fourth proportional to 80,451.74, 120,679.14 and 27,862.94 is: 41,794.94
Step by Step Solution
- Step 1: Write the proportion equation
80,451.74 : 120,679.14 = 27,862.94 : x - Step 2: Convert to fraction form
80,451.74/120,679.14 = 27,862.94/x - Step 3: Cross multiply
80,451.74x = 120,679.14 × 27,862.94 - Step 4: Simplify right side
80,451.74x = 3,362,475,637.07 - Step 5: Solve for x
x = 3,362,475,637.07/80,451.74 - Step 6: Final answer
x = 41,794.94
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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.