Finding the Fourth Proportional to 84,351.84, 116,405.64 and 48,541.12
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Solution
The fourth proportional to 84,351.84, 116,405.64 and 48,541.12 is: 66,986.80
Step by Step Solution
- Step 1: Write the proportion equation
84,351.84 : 116,405.64 = 48,541.12 : x - Step 2: Convert to fraction form
84,351.84/116,405.64 = 48,541.12/x - Step 3: Cross multiply
84,351.84x = 116,405.64 × 48,541.12 - Step 4: Simplify right side
84,351.84x = 5,650,460,139.92 - Step 5: Solve for x
x = 5,650,460,139.92/84,351.84 - Step 6: Final answer
x = 66,986.80
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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.