Finding the Fourth Proportional to 83,265.99, 114,879.11 and 47,430.65
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Solution
The fourth proportional to 83,265.99, 114,879.11 and 47,430.65 is: 65,438.36
Step by Step Solution
- Step 1: Write the proportion equation
83,265.99 : 114,879.11 = 47,430.65 : x - Step 2: Convert to fraction form
83,265.99/114,879.11 = 47,430.65/x - Step 3: Cross multiply
83,265.99x = 114,879.11 × 47,430.65 - Step 4: Simplify right side
83,265.99x = 5,448,790,047.17 - Step 5: Solve for x
x = 5,448,790,047.17/83,265.99 - Step 6: Final answer
x = 65,438.36
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.