Finding the Fourth Proportional to 87,692.41, 121,022.67 and 51,876.64
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Solution
The fourth proportional to 87,692.41, 121,022.67 and 51,876.64 is: 71,593.99
Step by Step Solution
- Step 1: Write the proportion equation
87,692.41 : 121,022.67 = 51,876.64 : x - Step 2: Convert to fraction form
87,692.41/121,022.67 = 51,876.64/x - Step 3: Cross multiply
87,692.41x = 121,022.67 × 51,876.64 - Step 4: Simplify right side
87,692.41x = 6,278,249,483.43 - Step 5: Solve for x
x = 6,278,249,483.43/87,692.41 - Step 6: Final answer
x = 71,593.99
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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.