Finding the Fourth Proportional to 77,662.08, 107,159.76 and 43,660.80
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Solution
The fourth proportional to 77,662.08, 107,159.76 and 43,660.80 is: 60,244.08
Step by Step Solution
- Step 1: Write the proportion equation
77,662.08 : 107,159.76 = 43,660.80 : x - Step 2: Convert to fraction form
77,662.08/107,159.76 = 43,660.80/x - Step 3: Cross multiply
77,662.08x = 107,159.76 × 43,660.80 - Step 4: Simplify right side
77,662.08x = 4,678,680,849.41 - Step 5: Solve for x
x = 4,678,680,849.41/77,662.08 - Step 6: Final answer
x = 60,244.08
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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.