Finding the Fourth Proportional to 85,440.98, 128,163.56 and 26,277.09
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Solution
The fourth proportional to 85,440.98, 128,163.56 and 26,277.09 is: 39,416.28
Step by Step Solution
- Step 1: Write the proportion equation
85,440.98 : 128,163.56 = 26,277.09 : x - Step 2: Convert to fraction form
85,440.98/128,163.56 = 26,277.09/x - Step 3: Cross multiply
85,440.98x = 128,163.56 × 26,277.09 - Step 4: Simplify right side
85,440.98x = 3,367,765,269.45 - Step 5: Solve for x
x = 3,367,765,269.45/85,440.98 - Step 6: Final answer
x = 39,416.28
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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.