Finding the Fourth Proportional to 91,988.22, 126,944.10 and 51,703.68
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Solution
The fourth proportional to 91,988.22, 126,944.10 and 51,703.68 is: 71,351.28
Step by Step Solution
- Step 1: Write the proportion equation
91,988.22 : 126,944.10 = 51,703.68 : x - Step 2: Convert to fraction form
91,988.22/126,944.10 = 51,703.68/x - Step 3: Cross multiply
91,988.22x = 126,944.10 × 51,703.68 - Step 4: Simplify right side
91,988.22x = 6,563,477,124.29 - Step 5: Solve for x
x = 6,563,477,124.29/91,988.22 - Step 6: Final answer
x = 71,351.28
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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.