Finding the Fourth Proportional to 76,638.98, 105,770.99 and 46,423.41
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Solution
The fourth proportional to 76,638.98, 105,770.99 and 46,423.41 is: 64,069.88
Step by Step Solution
- Step 1: Write the proportion equation
76,638.98 : 105,770.99 = 46,423.41 : x - Step 2: Convert to fraction form
76,638.98/105,770.99 = 46,423.41/x - Step 3: Cross multiply
76,638.98x = 105,770.99 × 46,423.41 - Step 4: Simplify right side
76,638.98x = 4,910,250,150.93 - Step 5: Solve for x
x = 4,910,250,150.93/76,638.98 - Step 6: Final answer
x = 64,069.88
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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.