Finding the Fourth Proportional to 76,409.64, 114,630.84 and 26,491.32
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Solution
The fourth proportional to 76,409.64, 114,630.84 and 26,491.32 is: 39,742.66
Step by Step Solution
- Step 1: Write the proportion equation
76,409.64 : 114,630.84 = 26,491.32 : x - Step 2: Convert to fraction form
76,409.64/114,630.84 = 26,491.32/x - Step 3: Cross multiply
76,409.64x = 114,630.84 × 26,491.32 - Step 4: Simplify right side
76,409.64x = 3,036,722,264.31 - Step 5: Solve for x
x = 3,036,722,264.31/76,409.64 - Step 6: Final answer
x = 39,742.66
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1.5x scale
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.