Finding the Fourth Proportional to 87,853.44, 121,293.60 and 57,692.28
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Solution
The fourth proportional to 87,853.44, 121,293.60 and 57,692.28 is: 79,652.02
Step by Step Solution
- Step 1: Write the proportion equation
87,853.44 : 121,293.60 = 57,692.28 : x - Step 2: Convert to fraction form
87,853.44/121,293.60 = 57,692.28/x - Step 3: Cross multiply
87,853.44x = 121,293.60 × 57,692.28 - Step 4: Simplify right side
87,853.44x = 6,997,704,333.41 - Step 5: Solve for x
x = 6,997,704,333.41/87,853.44 - Step 6: Final answer
x = 79,652.02
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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.