Finding the Fourth Proportional to 92,757.11, 139,128.67 and 29,574.68
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Solution
The fourth proportional to 92,757.11, 139,128.67 and 29,574.68 is: 44,359.79
Step by Step Solution
- Step 1: Write the proportion equation
92,757.11 : 139,128.67 = 29,574.68 : x - Step 2: Convert to fraction form
92,757.11/139,128.67 = 29,574.68/x - Step 3: Cross multiply
92,757.11x = 139,128.67 × 29,574.68 - Step 4: Simplify right side
92,757.11x = 4,114,685,894.08 - Step 5: Solve for x
x = 4,114,685,894.08/92,757.11 - Step 6: Final answer
x = 44,359.79
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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.