Finding the Fourth Proportional to 84,972.78, 117,247.08 and 48,179.10
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Solution
The fourth proportional to 84,972.78, 117,247.08 and 48,179.10 is: 66,478.45
Step by Step Solution
- Step 1: Write the proportion equation
84,972.78 : 117,247.08 = 48,179.10 : x - Step 2: Convert to fraction form
84,972.78/117,247.08 = 48,179.10/x - Step 3: Cross multiply
84,972.78x = 117,247.08 × 48,179.10 - Step 4: Simplify right side
84,972.78x = 5,648,858,792.03 - Step 5: Solve for x
x = 5,648,858,792.03/84,972.78 - Step 6: Final answer
x = 66,478.45
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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.