Finding the Fourth Proportional to 77,623.88, 107,120.00 and 43,638.03
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Solution
The fourth proportional to 77,623.88, 107,120.00 and 43,638.03 is: 60,219.95
Step by Step Solution
- Step 1: Write the proportion equation
77,623.88 : 107,120.00 = 43,638.03 : x - Step 2: Convert to fraction form
77,623.88/107,120.00 = 43,638.03/x - Step 3: Cross multiply
77,623.88x = 107,120.00 × 43,638.03 - Step 4: Simplify right side
77,623.88x = 4,674,505,882.70 - Step 5: Solve for x
x = 4,674,505,882.70/77,623.88 - Step 6: Final answer
x = 60,219.95
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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.