Finding the Fourth Proportional to 83,806.23, 115,652.19 and 49,370.95
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Solution
The fourth proportional to 83,806.23, 115,652.19 and 49,370.95 is: 68,131.68
Step by Step Solution
- Step 1: Write the proportion equation
83,806.23 : 115,652.19 = 49,370.95 : x - Step 2: Convert to fraction form
83,806.23/115,652.19 = 49,370.95/x - Step 3: Cross multiply
83,806.23x = 115,652.19 × 49,370.95 - Step 4: Simplify right side
83,806.23x = 5,709,858,819.59 - Step 5: Solve for x
x = 5,709,858,819.59/83,806.23 - Step 6: Final answer
x = 68,131.68
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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.