Finding the Fourth Proportional to 76,805.68, 106,021.56 and 60,044.08
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Solution
The fourth proportional to 76,805.68, 106,021.56 and 60,044.08 is: 82,884.07
Step by Step Solution
- Step 1: Write the proportion equation
76,805.68 : 106,021.56 = 60,044.08 : x - Step 2: Convert to fraction form
76,805.68/106,021.56 = 60,044.08/x - Step 3: Cross multiply
76,805.68x = 106,021.56 × 60,044.08 - Step 4: Simplify right side
76,805.68x = 6,365,967,030.36 - Step 5: Solve for x
x = 6,365,967,030.36/76,805.68 - Step 6: Final answer
x = 82,884.07
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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.