Finding the Fourth Proportional to 77,817.12, 107,388.12 and 44,283.12
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Solution
The fourth proportional to 77,817.12, 107,388.12 and 44,283.12 is: 61,110.99
Step by Step Solution
- Step 1: Write the proportion equation
77,817.12 : 107,388.12 = 44,283.12 : x - Step 2: Convert to fraction form
77,817.12/107,388.12 = 44,283.12/x - Step 3: Cross multiply
77,817.12x = 107,388.12 × 44,283.12 - Step 4: Simplify right side
77,817.12x = 4,755,481,004.53 - Step 5: Solve for x
x = 4,755,481,004.53/77,817.12 - Step 6: Final answer
x = 61,110.99
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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.