Finding the Fourth Proportional to 69,862.97, 104,785.79 and 19,947.44
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Solution
The fourth proportional to 69,862.97, 104,785.79 and 19,947.44 is: 29,918.68
Step by Step Solution
- Step 1: Write the proportion equation
69,862.97 : 104,785.79 = 19,947.44 : x - Step 2: Convert to fraction form
69,862.97/104,785.79 = 19,947.44/x - Step 3: Cross multiply
69,862.97x = 104,785.79 × 19,947.44 - Step 4: Simplify right side
69,862.97x = 2,090,207,635.21 - Step 5: Solve for x
x = 2,090,207,635.21/69,862.97 - Step 6: Final answer
x = 29,918.68
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.