Finding the Fourth Proportional to 68,990.38, 103,946.58 and 62,334.61
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Solution
The fourth proportional to 68,990.38, 103,946.58 and 62,334.61 is: 93,918.45
Step by Step Solution
- Step 1: Write the proportion equation
68,990.38 : 103,946.58 = 62,334.61 : x - Step 2: Convert to fraction form
68,990.38/103,946.58 = 62,334.61/x - Step 3: Cross multiply
68,990.38x = 103,946.58 × 62,334.61 - Step 4: Simplify right side
68,990.38x = 6,479,469,525.13 - Step 5: Solve for x
x = 6,479,469,525.13/68,990.38 - Step 6: Final answer
x = 93,918.45
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.