Finding the Fourth Proportional to 69,806.97, 103,920.93 and 69,391.79
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Solution
The fourth proportional to 69,806.97, 103,920.93 and 69,391.79 is: 103,302.84
Step by Step Solution
- Step 1: Write the proportion equation
69,806.97 : 103,920.93 = 69,391.79 : x - Step 2: Convert to fraction form
69,806.97/103,920.93 = 69,391.79/x - Step 3: Cross multiply
69,806.97x = 103,920.93 × 69,391.79 - Step 4: Simplify right side
69,806.97x = 7,211,258,744.40 - Step 5: Solve for x
x = 7,211,258,744.40/69,806.97 - Step 6: Final answer
x = 103,302.84
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.