Finding the Fourth Proportional to 77,779.68, 116,693.88 and 27,858.84
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Solution
The fourth proportional to 77,779.68, 116,693.88 and 27,858.84 is: 41,796.99
Step by Step Solution
- Step 1: Write the proportion equation
77,779.68 : 116,693.88 = 27,858.84 : x - Step 2: Convert to fraction form
77,779.68/116,693.88 = 27,858.84/x - Step 3: Cross multiply
77,779.68x = 116,693.88 × 27,858.84 - Step 4: Simplify right side
77,779.68x = 3,250,956,131.90 - Step 5: Solve for x
x = 3,250,956,131.90/77,779.68 - Step 6: Final answer
x = 41,796.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.