Finding the Fourth Proportional to 86,734.21, 119,692.74 and 48,493.75
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Solution
The fourth proportional to 86,734.21, 119,692.74 and 48,493.75 is: 66,921.11
Step by Step Solution
- Step 1: Write the proportion equation
86,734.21 : 119,692.74 = 48,493.75 : x - Step 2: Convert to fraction form
86,734.21/119,692.74 = 48,493.75/x - Step 3: Cross multiply
86,734.21x = 119,692.74 × 48,493.75 - Step 4: Simplify right side
86,734.21x = 5,804,349,810.38 - Step 5: Solve for x
x = 5,804,349,810.38/86,734.21 - Step 6: Final answer
x = 66,921.11
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1.5x scale
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.