Finding the Fourth Proportional to 80,916.24, 121,343.52 and 24,739.20
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Solution
The fourth proportional to 80,916.24, 121,343.52 and 24,739.20 is: 37,099.37
Step by Step Solution
- Step 1: Write the proportion equation
80,916.24 : 121,343.52 = 24,739.20 : x - Step 2: Convert to fraction form
80,916.24/121,343.52 = 24,739.20/x - Step 3: Cross multiply
80,916.24x = 121,343.52 × 24,739.20 - Step 4: Simplify right side
80,916.24x = 3,001,941,609.98 - Step 5: Solve for x
x = 3,001,941,609.98/80,916.24 - Step 6: Final answer
x = 37,099.37
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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.