Finding the Fourth Proportional to 93,812.80, 140,731.36 and 30,610.68
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Solution
The fourth proportional to 93,812.80, 140,731.36 and 30,610.68 is: 45,919.99
Step by Step Solution
- Step 1: Write the proportion equation
93,812.80 : 140,731.36 = 30,610.68 : x - Step 2: Convert to fraction form
93,812.80/140,731.36 = 30,610.68/x - Step 3: Cross multiply
93,812.80x = 140,731.36 × 30,610.68 - Step 4: Simplify right side
93,812.80x = 4,307,882,626.92 - Step 5: Solve for x
x = 4,307,882,626.92/93,812.80 - Step 6: Final answer
x = 45,919.99
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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.