Finding the Fourth Proportional to 91,370.58, 126,130.26 and 55,572.09
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Solution
The fourth proportional to 91,370.58, 126,130.26 and 55,572.09 is: 76,713.12
Step by Step Solution
- Step 1: Write the proportion equation
91,370.58 : 126,130.26 = 55,572.09 : x - Step 2: Convert to fraction form
91,370.58/126,130.26 = 55,572.09/x - Step 3: Cross multiply
91,370.58x = 126,130.26 × 55,572.09 - Step 4: Simplify right side
91,370.58x = 7,009,322,160.44 - Step 5: Solve for x
x = 7,009,322,160.44/91,370.58 - Step 6: Final answer
x = 76,713.12
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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.