Finding the Fourth Proportional to 76,975.36, 115,384.50 and 43,624.98
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Solution
The fourth proportional to 76,975.36, 115,384.50 and 43,624.98 is: 65,392.96
Step by Step Solution
- Step 1: Write the proportion equation
76,975.36 : 115,384.50 = 43,624.98 : x - Step 2: Convert to fraction form
76,975.36/115,384.50 = 43,624.98/x - Step 3: Cross multiply
76,975.36x = 115,384.50 × 43,624.98 - Step 4: Simplify right side
76,975.36x = 5,033,646,504.81 - Step 5: Solve for x
x = 5,033,646,504.81/76,975.36 - Step 6: Final answer
x = 65,392.96
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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.