Finding the Fourth Proportional to 77,660.06, 107,209.68 and 50,843.66
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Solution
The fourth proportional to 77,660.06, 107,209.68 and 50,843.66 is: 70,189.65
Step by Step Solution
- Step 1: Write the proportion equation
77,660.06 : 107,209.68 = 50,843.66 : x - Step 2: Convert to fraction form
77,660.06/107,209.68 = 50,843.66/x - Step 3: Cross multiply
77,660.06x = 107,209.68 × 50,843.66 - Step 4: Simplify right side
77,660.06x = 5,450,932,518.63 - Step 5: Solve for x
x = 5,450,932,518.63/77,660.06 - Step 6: Final answer
x = 70,189.65
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1.5x scale
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.