Finding the Fourth Proportional to 85,492.49, 128,232.65 and 26,321.99
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Solution
The fourth proportional to 85,492.49, 128,232.65 and 26,321.99 is: 39,481.11
Step by Step Solution
- Step 1: Write the proportion equation
85,492.49 : 128,232.65 = 26,321.99 : x - Step 2: Convert to fraction form
85,492.49/128,232.65 = 26,321.99/x - Step 3: Cross multiply
85,492.49x = 128,232.65 × 26,321.99 - Step 4: Simplify right side
85,492.49x = 3,375,337,955.62 - Step 5: Solve for x
x = 3,375,337,955.62/85,492.49 - Step 6: Final answer
x = 39,481.11
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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.