Finding the Fourth Proportional to 78,851.68, 108,814.36 and 44,860.09
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Solution
The fourth proportional to 78,851.68, 108,814.36 and 44,860.09 is: 61,906.38
Step by Step Solution
- Step 1: Write the proportion equation
78,851.68 : 108,814.36 = 44,860.09 : x - Step 2: Convert to fraction form
78,851.68/108,814.36 = 44,860.09/x - Step 3: Cross multiply
78,851.68x = 108,814.36 × 44,860.09 - Step 4: Simplify right side
78,851.68x = 4,881,421,982.89 - Step 5: Solve for x
x = 4,881,421,982.89/78,851.68 - Step 6: Final answer
x = 61,906.38
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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.