Finding the Fourth Proportional to 84,147.87, 116,118.86 and 48,312.75
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Solution
The fourth proportional to 84,147.87, 116,118.86 and 48,312.75 is: 66,668.61
Step by Step Solution
- Step 1: Write the proportion equation
84,147.87 : 116,118.86 = 48,312.75 : x - Step 2: Convert to fraction form
84,147.87/116,118.86 = 48,312.75/x - Step 3: Cross multiply
84,147.87x = 116,118.86 × 48,312.75 - Step 4: Simplify right side
84,147.87x = 5,610,021,211.90 - Step 5: Solve for x
x = 5,610,021,211.90/84,147.87 - Step 6: Final answer
x = 66,668.61
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.