Finding the Fourth Proportional to 74,762.52, 103,171.97 and 40,770.92
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Solution
The fourth proportional to 74,762.52, 103,171.97 and 40,770.92 is: 56,263.70
Step by Step Solution
- Step 1: Write the proportion equation
74,762.52 : 103,171.97 = 40,770.92 : x - Step 2: Convert to fraction form
74,762.52/103,171.97 = 40,770.92/x - Step 3: Cross multiply
74,762.52x = 103,171.97 × 40,770.92 - Step 4: Simplify right side
74,762.52x = 4,206,415,685.29 - Step 5: Solve for x
x = 4,206,415,685.29/74,762.52 - Step 6: Final answer
x = 56,263.70
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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.