Finding the Fourth Proportional to 85,436.13, 127,277.07 and 81,597.99
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Solution
The fourth proportional to 85,436.13, 127,277.07 and 81,597.99 is: 121,559.26
Step by Step Solution
- Step 1: Write the proportion equation
85,436.13 : 127,277.07 = 81,597.99 : x - Step 2: Convert to fraction form
85,436.13/127,277.07 = 81,597.99/x - Step 3: Cross multiply
85,436.13x = 127,277.07 × 81,597.99 - Step 4: Simplify right side
85,436.13x = 10,385,553,085.09 - Step 5: Solve for x
x = 10,385,553,085.09/85,436.13 - Step 6: Final answer
x = 121,559.26
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.