Finding the Fourth Proportional to 73,764.24, 110,643.47 and 21,173.70
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Solution
The fourth proportional to 73,764.24, 110,643.47 and 21,173.70 is: 31,759.72
Step by Step Solution
- Step 1: Write the proportion equation
73,764.24 : 110,643.47 = 21,173.70 : x - Step 2: Convert to fraction form
73,764.24/110,643.47 = 21,173.70/x - Step 3: Cross multiply
73,764.24x = 110,643.47 × 21,173.70 - Step 4: Simplify right side
73,764.24x = 2,342,731,534.87 - Step 5: Solve for x
x = 2,342,731,534.87/73,764.24 - Step 6: Final answer
x = 31,759.72
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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.