Finding the Fourth Proportional to 80,606.24, 120,724.97 and 38,515.91
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Solution
The fourth proportional to 80,606.24, 120,724.97 and 38,515.91 is: 57,685.76
Step by Step Solution
- Step 1: Write the proportion equation
80,606.24 : 120,724.97 = 38,515.91 : x - Step 2: Convert to fraction form
80,606.24/120,724.97 = 38,515.91/x - Step 3: Cross multiply
80,606.24x = 120,724.97 × 38,515.91 - Step 4: Simplify right side
80,606.24x = 4,649,832,079.27 - Step 5: Solve for x
x = 4,649,832,079.27/80,606.24 - Step 6: Final answer
x = 57,685.76
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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.