Finding the Fourth Proportional to 92,761.92, 139,163.04 and 30,430.08
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Solution
The fourth proportional to 92,761.92, 139,163.04 and 30,430.08 is: 45,651.73
Step by Step Solution
- Step 1: Write the proportion equation
92,761.92 : 139,163.04 = 30,430.08 : x - Step 2: Convert to fraction form
92,761.92/139,163.04 = 30,430.08/x - Step 3: Cross multiply
92,761.92x = 139,163.04 × 30,430.08 - Step 4: Simplify right side
92,761.92x = 4,234,742,440.24 - Step 5: Solve for x
x = 4,234,742,440.24/92,761.92 - Step 6: Final answer
x = 45,651.73
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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.