Finding the Fourth Proportional to 91,349.06, 126,077.74 and 53,120.44
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Solution
The fourth proportional to 91,349.06, 126,077.74 and 53,120.44 is: 73,315.53
Step by Step Solution
- Step 1: Write the proportion equation
91,349.06 : 126,077.74 = 53,120.44 : x - Step 2: Convert to fraction form
91,349.06/126,077.74 = 53,120.44/x - Step 3: Cross multiply
91,349.06x = 126,077.74 × 53,120.44 - Step 4: Simplify right side
91,349.06x = 6,697,305,023.01 - Step 5: Solve for x
x = 6,697,305,023.01/91,349.06 - Step 6: Final answer
x = 73,315.53
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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.