Finding the Fourth Proportional to 77,529.62, 106,984.78 and 43,995.62
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Solution
The fourth proportional to 77,529.62, 106,984.78 and 43,995.62 is: 60,710.49
Step by Step Solution
- Step 1: Write the proportion equation
77,529.62 : 106,984.78 = 43,995.62 : x - Step 2: Convert to fraction form
77,529.62/106,984.78 = 43,995.62/x - Step 3: Cross multiply
77,529.62x = 106,984.78 × 43,995.62 - Step 4: Simplify right side
77,529.62x = 4,706,861,081.75 - Step 5: Solve for x
x = 4,706,861,081.75/77,529.62 - Step 6: Final answer
x = 60,710.49
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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.