Finding the Fourth Proportional to 73,716.36, 110,487.06 and 42,487.08
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Solution
The fourth proportional to 73,716.36, 110,487.06 and 42,487.08 is: 63,680.20
Step by Step Solution
- Step 1: Write the proportion equation
73,716.36 : 110,487.06 = 42,487.08 : x - Step 2: Convert to fraction form
73,716.36/110,487.06 = 42,487.08/x - Step 3: Cross multiply
73,716.36x = 110,487.06 × 42,487.08 - Step 4: Simplify right side
73,716.36x = 4,694,272,557.18 - Step 5: Solve for x
x = 4,694,272,557.18/73,716.36 - Step 6: Final answer
x = 63,680.20
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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.