Finding the Fourth Proportional to 85,187.49, 127,781.70 and 35,240.53
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Solution
The fourth proportional to 85,187.49, 127,781.70 and 35,240.53 is: 52,860.99
Step by Step Solution
- Step 1: Write the proportion equation
85,187.49 : 127,781.70 = 35,240.53 : x - Step 2: Convert to fraction form
85,187.49/127,781.70 = 35,240.53/x - Step 3: Cross multiply
85,187.49x = 127,781.70 × 35,240.53 - Step 4: Simplify right side
85,187.49x = 4,503,094,832.30 - Step 5: Solve for x
x = 4,503,094,832.30/85,187.49 - Step 6: Final answer
x = 52,860.99
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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.