Finding the Fourth Proportional to 91,128.03, 136,626.44 and 55,995.09
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Solution
The fourth proportional to 91,128.03, 136,626.44 and 55,995.09 is: 83,952.32
Step by Step Solution
- Step 1: Write the proportion equation
91,128.03 : 136,626.44 = 55,995.09 : x - Step 2: Convert to fraction form
91,128.03/136,626.44 = 55,995.09/x - Step 3: Cross multiply
91,128.03x = 136,626.44 × 55,995.09 - Step 4: Simplify right side
91,128.03x = 7,650,409,524.20 - Step 5: Solve for x
x = 7,650,409,524.20/91,128.03 - Step 6: Final answer
x = 83,952.32
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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.