Finding the Fourth Proportional to 77,884.01, 107,408.16 and 51,996.99
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Solution
The fourth proportional to 77,884.01, 107,408.16 and 51,996.99 is: 71,707.93
Step by Step Solution
- Step 1: Write the proportion equation
77,884.01 : 107,408.16 = 51,996.99 : x - Step 2: Convert to fraction form
77,884.01/107,408.16 = 51,996.99/x - Step 3: Cross multiply
77,884.01x = 107,408.16 × 51,996.99 - Step 4: Simplify right side
77,884.01x = 5,584,901,021.44 - Step 5: Solve for x
x = 5,584,901,021.44/77,884.01 - Step 6: Final answer
x = 71,707.93
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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.