Finding the Fourth Proportional to 81,745.28, 122,573.84 and 24,811.28
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Solution
The fourth proportional to 81,745.28, 122,573.84 and 24,811.28 is: 37,203.54
Step by Step Solution
- Step 1: Write the proportion equation
81,745.28 : 122,573.84 = 24,811.28 : x - Step 2: Convert to fraction form
81,745.28/122,573.84 = 24,811.28/x - Step 3: Cross multiply
81,745.28x = 122,573.84 × 24,811.28 - Step 4: Simplify right side
81,745.28x = 3,041,213,864.92 - Step 5: Solve for x
x = 3,041,213,864.92/81,745.28 - Step 6: Final answer
x = 37,203.54
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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.