Finding the Fourth Proportional to 78,531.06, 108,348.37 and 44,536.87
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Solution
The fourth proportional to 78,531.06, 108,348.37 and 44,536.87 is: 61,446.99
Step by Step Solution
- Step 1: Write the proportion equation
78,531.06 : 108,348.37 = 44,536.87 : x - Step 2: Convert to fraction form
78,531.06/108,348.37 = 44,536.87/x - Step 3: Cross multiply
78,531.06x = 108,348.37 × 44,536.87 - Step 4: Simplify right side
78,531.06x = 4,825,497,269.40 - Step 5: Solve for x
x = 4,825,497,269.40/78,531.06 - Step 6: Final answer
x = 61,446.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.