Finding the Fourth Proportional to 77,162.79, 115,748.71 and 29,778.14
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Solution
The fourth proportional to 77,162.79, 115,748.71 and 29,778.14 is: 44,668.95
Step by Step Solution
- Step 1: Write the proportion equation
77,162.79 : 115,748.71 = 29,778.14 : x - Step 2: Convert to fraction form
77,162.79/115,748.71 = 29,778.14/x - Step 3: Cross multiply
77,162.79x = 115,748.71 × 29,778.14 - Step 4: Simplify right side
77,162.79x = 3,446,780,563.57 - Step 5: Solve for x
x = 3,446,780,563.57/77,162.79 - Step 6: Final answer
x = 44,668.95
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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.