Finding the Fourth Proportional to 79,134.51, 118,719.54 and 26,542.65
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Solution
The fourth proportional to 79,134.51, 118,719.54 and 26,542.65 is: 39,819.94
Step by Step Solution
- Step 1: Write the proportion equation
79,134.51 : 118,719.54 = 26,542.65 : x - Step 2: Convert to fraction form
79,134.51/118,719.54 = 26,542.65/x - Step 3: Cross multiply
79,134.51x = 118,719.54 × 26,542.65 - Step 4: Simplify right side
79,134.51x = 3,151,131,198.38 - Step 5: Solve for x
x = 3,151,131,198.38/79,134.51 - Step 6: Final answer
x = 39,819.94
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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.