Finding the Fourth Proportional to 84,168.78, 116,152.60 and 45,927.99
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Solution
The fourth proportional to 84,168.78, 116,152.60 and 45,927.99 is: 63,380.45
Step by Step Solution
- Step 1: Write the proportion equation
84,168.78 : 116,152.60 = 45,927.99 : x - Step 2: Convert to fraction form
84,168.78/116,152.60 = 45,927.99/x - Step 3: Cross multiply
84,168.78x = 116,152.60 × 45,927.99 - Step 4: Simplify right side
84,168.78x = 5,334,655,336.45 - Step 5: Solve for x
x = 5,334,655,336.45/84,168.78 - Step 6: Final answer
x = 63,380.45
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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.