Finding the Fourth Proportional to 85,452.08, 128,066.58 and 61,839.14
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Solution
The fourth proportional to 85,452.08, 128,066.58 and 61,839.14 is: 92,677.99
Step by Step Solution
- Step 1: Write the proportion equation
85,452.08 : 128,066.58 = 61,839.14 : x - Step 2: Convert to fraction form
85,452.08/128,066.58 = 61,839.14/x - Step 3: Cross multiply
85,452.08x = 128,066.58 × 61,839.14 - Step 4: Simplify right side
85,452.08x = 7,919,526,529.61 - Step 5: Solve for x
x = 7,919,526,529.61/85,452.08 - Step 6: Final answer
x = 92,677.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.