Finding the Fourth Proportional to 86,512.23, 119,331.77 and 76,277.07
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Solution
The fourth proportional to 86,512.23, 119,331.77 and 76,277.07 is: 105,213.76
Step by Step Solution
- Step 1: Write the proportion equation
86,512.23 : 119,331.77 = 76,277.07 : x - Step 2: Convert to fraction form
86,512.23/119,331.77 = 76,277.07/x - Step 3: Cross multiply
86,512.23x = 119,331.77 × 76,277.07 - Step 4: Simplify right side
86,512.23x = 9,102,277,392.13 - Step 5: Solve for x
x = 9,102,277,392.13/86,512.23 - Step 6: Final answer
x = 105,213.76
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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.