Finding the Fourth Proportional to 78,857.09, 108,818.99 and 44,862.41
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Solution
The fourth proportional to 78,857.09, 108,818.99 and 44,862.41 is: 61,907.96
Step by Step Solution
- Step 1: Write the proportion equation
78,857.09 : 108,818.99 = 44,862.41 : x - Step 2: Convert to fraction form
78,857.09/108,818.99 = 44,862.41/x - Step 3: Cross multiply
78,857.09x = 108,818.99 × 44,862.41 - Step 4: Simplify right side
78,857.09x = 4,881,882,001.38 - Step 5: Solve for x
x = 4,881,882,001.38/78,857.09 - Step 6: Final answer
x = 61,907.96
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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.