Finding the Fourth Proportional to 101,042.87, 139,439.09 and 58,025.17
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Solution
The fourth proportional to 101,042.87, 139,439.09 and 58,025.17 is: 80,074.70
Step by Step Solution
- Step 1: Write the proportion equation
101,042.87 : 139,439.09 = 58,025.17 : x - Step 2: Convert to fraction form
101,042.87/139,439.09 = 58,025.17/x - Step 3: Cross multiply
101,042.87x = 139,439.09 × 58,025.17 - Step 4: Simplify right side
101,042.87x = 8,090,976,698.36 - Step 5: Solve for x
x = 8,090,976,698.36/101,042.87 - Step 6: Final answer
x = 80,074.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.