Finding the Fourth Proportional to 76,042.80, 104,965.20 and 44,221.68
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Solution
The fourth proportional to 76,042.80, 104,965.20 and 44,221.68 is: 61,041.12
Step by Step Solution
- Step 1: Write the proportion equation
76,042.80 : 104,965.20 = 44,221.68 : x - Step 2: Convert to fraction form
76,042.80/104,965.20 = 44,221.68/x - Step 3: Cross multiply
76,042.80x = 104,965.20 × 44,221.68 - Step 4: Simplify right side
76,042.80x = 4,641,737,485.54 - Step 5: Solve for x
x = 4,641,737,485.54/76,042.80 - Step 6: Final answer
x = 61,041.12
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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.