Finding the Fourth Proportional to 115,991.86, 174,005.07 and 53,668.66
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Solution
The fourth proportional to 115,991.86, 174,005.07 and 53,668.66 is: 80,510.99
Step by Step Solution
- Step 1: Write the proportion equation
115,991.86 : 174,005.07 = 53,668.66 : x - Step 2: Convert to fraction form
115,991.86/174,005.07 = 53,668.66/x - Step 3: Cross multiply
115,991.86x = 174,005.07 × 53,668.66 - Step 4: Simplify right side
115,991.86x = 9,338,618,940.11 - Step 5: Solve for x
x = 9,338,618,940.11/115,991.86 - Step 6: Final answer
x = 80,510.99
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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.