Finding the Fourth Proportional to 81,539.18, 122,320.92 and 28,944.26
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Solution
The fourth proportional to 81,539.18, 122,320.92 and 28,944.26 is: 43,420.70
Step by Step Solution
- Step 1: Write the proportion equation
81,539.18 : 122,320.92 = 28,944.26 : x - Step 2: Convert to fraction form
81,539.18/122,320.92 = 28,944.26/x - Step 3: Cross multiply
81,539.18x = 122,320.92 × 28,944.26 - Step 4: Simplify right side
81,539.18x = 3,540,487,755.59 - Step 5: Solve for x
x = 3,540,487,755.59/81,539.18 - Step 6: Final answer
x = 43,420.70
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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.