Finding the Fourth Proportional to 85,255.11, 117,628.32 and 49,437.99
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Solution
The fourth proportional to 85,255.11, 117,628.32 and 49,437.99 is: 68,210.66
Step by Step Solution
- Step 1: Write the proportion equation
85,255.11 : 117,628.32 = 49,437.99 : x - Step 2: Convert to fraction form
85,255.11/117,628.32 = 49,437.99/x - Step 3: Cross multiply
85,255.11x = 117,628.32 × 49,437.99 - Step 4: Simplify right side
85,255.11x = 5,815,307,707.88 - Step 5: Solve for x
x = 5,815,307,707.88/85,255.11 - Step 6: Final answer
x = 68,210.66
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.