Finding the Fourth Proportional to 74,692.26, 103,073.97 and 40,700.97
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Solution
The fourth proportional to 74,692.26, 103,073.97 and 40,700.97 is: 56,166.60
Step by Step Solution
- Step 1: Write the proportion equation
74,692.26 : 103,073.97 = 40,700.97 : x - Step 2: Convert to fraction form
74,692.26/103,073.97 = 40,700.97/x - Step 3: Cross multiply
74,692.26x = 103,073.97 × 40,700.97 - Step 4: Simplify right side
74,692.26x = 4,195,210,560.75 - Step 5: Solve for x
x = 4,195,210,560.75/74,692.26 - Step 6: Final answer
x = 56,166.60
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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.