Finding the Fourth Proportional to 77,750.54, 107,296.19 and 43,759.70
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Solution
The fourth proportional to 77,750.54, 107,296.19 and 43,759.70 is: 60,388.63
Step by Step Solution
- Step 1: Write the proportion equation
77,750.54 : 107,296.19 = 43,759.70 : x - Step 2: Convert to fraction form
77,750.54/107,296.19 = 43,759.70/x - Step 3: Cross multiply
77,750.54x = 107,296.19 × 43,759.70 - Step 4: Simplify right side
77,750.54x = 4,695,248,330.26 - Step 5: Solve for x
x = 4,695,248,330.26/77,750.54 - Step 6: Final answer
x = 60,388.63
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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.