Finding the Fourth Proportional to 92,418.15, 127,556.97 and 58,405.05
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Solution
The fourth proportional to 92,418.15, 127,556.97 and 58,405.05 is: 80,611.56
Step by Step Solution
- Step 1: Write the proportion equation
92,418.15 : 127,556.97 = 58,405.05 : x - Step 2: Convert to fraction form
92,418.15/127,556.97 = 58,405.05/x - Step 3: Cross multiply
92,418.15x = 127,556.97 × 58,405.05 - Step 4: Simplify right side
92,418.15x = 7,449,971,210.70 - Step 5: Solve for x
x = 7,449,971,210.70/92,418.15 - Step 6: Final answer
x = 80,611.56
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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.