Finding the Fourth Proportional to 77,152.49, 115,727.85 and 58,546.79
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Solution
The fourth proportional to 77,152.49, 115,727.85 and 58,546.79 is: 87,819.51
Step by Step Solution
- Step 1: Write the proportion equation
77,152.49 : 115,727.85 = 58,546.79 : x - Step 2: Convert to fraction form
77,152.49/115,727.85 = 58,546.79/x - Step 3: Cross multiply
77,152.49x = 115,727.85 × 58,546.79 - Step 4: Simplify right side
77,152.49x = 6,775,494,131.10 - Step 5: Solve for x
x = 6,775,494,131.10/77,152.49 - Step 6: Final answer
x = 87,819.51
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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.