Finding the Fourth Proportional to 80,956.14, 121,330.14 and 38,772.96
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Solution
The fourth proportional to 80,956.14, 121,330.14 and 38,772.96 is: 58,109.60
Step by Step Solution
- Step 1: Write the proportion equation
80,956.14 : 121,330.14 = 38,772.96 : x - Step 2: Convert to fraction form
80,956.14/121,330.14 = 38,772.96/x - Step 3: Cross multiply
80,956.14x = 121,330.14 × 38,772.96 - Step 4: Simplify right side
80,956.14x = 4,704,328,665.01 - Step 5: Solve for x
x = 4,704,328,665.01/80,956.14 - Step 6: Final answer
x = 58,109.60
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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.