Finding the Fourth Proportional to 77,742.72, 116,623.58 and 27,828.08
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Solution
The fourth proportional to 77,742.72, 116,623.58 and 27,828.08 is: 41,745.52
Step by Step Solution
- Step 1: Write the proportion equation
77,742.72 : 116,623.58 = 27,828.08 : x - Step 2: Convert to fraction form
77,742.72/116,623.58 = 27,828.08/x - Step 3: Cross multiply
77,742.72x = 116,623.58 × 27,828.08 - Step 4: Simplify right side
77,742.72x = 3,245,410,314.13 - Step 5: Solve for x
x = 3,245,410,314.13/77,742.72 - Step 6: Final answer
x = 41,745.52
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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.