Finding the Fourth Proportional to 73,664.40, 110,491.74 and 31,544.40
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Solution
The fourth proportional to 73,664.40, 110,491.74 and 31,544.40 is: 47,314.52
Step by Step Solution
- Step 1: Write the proportion equation
73,664.40 : 110,491.74 = 31,544.40 : x - Step 2: Convert to fraction form
73,664.40/110,491.74 = 31,544.40/x - Step 3: Cross multiply
73,664.40x = 110,491.74 × 31,544.40 - Step 4: Simplify right side
73,664.40x = 3,485,395,643.26 - Step 5: Solve for x
x = 3,485,395,643.26/73,664.40 - Step 6: Final answer
x = 47,314.52
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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.