Finding the Fourth Proportional to 83,651.68, 115,388.64 and 49,637.80
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Solution
The fourth proportional to 83,651.68, 115,388.64 and 49,637.80 is: 68,470.09
Step by Step Solution
- Step 1: Write the proportion equation
83,651.68 : 115,388.64 = 49,637.80 : x - Step 2: Convert to fraction form
83,651.68/115,388.64 = 49,637.80/x - Step 3: Cross multiply
83,651.68x = 115,388.64 × 49,637.80 - Step 4: Simplify right side
83,651.68x = 5,727,638,234.59 - Step 5: Solve for x
x = 5,727,638,234.59/83,651.68 - Step 6: Final answer
x = 68,470.09
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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.