Finding the Fourth Proportional to 85,327.99, 127,987.20 and 26,163.50
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Solution
The fourth proportional to 85,327.99, 127,987.20 and 26,163.50 is: 39,243.78
Step by Step Solution
- Step 1: Write the proportion equation
85,327.99 : 127,987.20 = 26,163.50 : x - Step 2: Convert to fraction form
85,327.99/127,987.20 = 26,163.50/x - Step 3: Cross multiply
85,327.99x = 127,987.20 × 26,163.50 - Step 4: Simplify right side
85,327.99x = 3,348,592,787.23 - Step 5: Solve for x
x = 3,348,592,787.23/85,327.99 - Step 6: Final answer
x = 39,243.78
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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.