Finding the Fourth Proportional to 77,161.92, 115,747.39 and 29,777.26
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Solution
The fourth proportional to 77,161.92, 115,747.39 and 29,777.26 is: 44,667.63
Step by Step Solution
- Step 1: Write the proportion equation
77,161.92 : 115,747.39 = 29,777.26 : x - Step 2: Convert to fraction form
77,161.92/115,747.39 = 29,777.26/x - Step 3: Cross multiply
77,161.92x = 115,747.39 × 29,777.26 - Step 4: Simplify right side
77,161.92x = 3,446,639,970.34 - Step 5: Solve for x
x = 3,446,639,970.34/77,161.92 - Step 6: Final answer
x = 44,667.63
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.