Finding the Fourth Proportional to 80,337.36, 120,496.84 and 21,177.68
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Solution
The fourth proportional to 80,337.36, 120,496.84 and 21,177.68 is: 31,764.09
Step by Step Solution
- Step 1: Write the proportion equation
80,337.36 : 120,496.84 = 21,177.68 : x - Step 2: Convert to fraction form
80,337.36/120,496.84 = 21,177.68/x - Step 3: Cross multiply
80,337.36x = 120,496.84 × 21,177.68 - Step 4: Simplify right side
80,337.36x = 2,551,843,518.53 - Step 5: Solve for x
x = 2,551,843,518.53/80,337.36 - Step 6: Final answer
x = 31,764.09
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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.