Finding the Fourth Proportional to 78,310.75, 108,068.97 and 44,776.75
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Solution
The fourth proportional to 78,310.75, 108,068.97 and 44,776.75 is: 61,791.99
Step by Step Solution
- Step 1: Write the proportion equation
78,310.75 : 108,068.97 = 44,776.75 : x - Step 2: Convert to fraction form
78,310.75/108,068.97 = 44,776.75/x - Step 3: Cross multiply
78,310.75x = 108,068.97 × 44,776.75 - Step 4: Simplify right side
78,310.75x = 4,838,977,252.45 - Step 5: Solve for x
x = 4,838,977,252.45/78,310.75 - Step 6: Final answer
x = 61,791.99
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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.