Finding the Fourth Proportional to 84,387.16, 116,348.43 and 54,119.08
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Solution
The fourth proportional to 84,387.16, 116,348.43 and 54,119.08 is: 74,616.45
Step by Step Solution
- Step 1: Write the proportion equation
84,387.16 : 116,348.43 = 54,119.08 : x - Step 2: Convert to fraction form
84,387.16/116,348.43 = 54,119.08/x - Step 3: Cross multiply
84,387.16x = 116,348.43 × 54,119.08 - Step 4: Simplify right side
84,387.16x = 6,296,669,991.04 - Step 5: Solve for x
x = 6,296,669,991.04/84,387.16 - Step 6: Final answer
x = 74,616.45
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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.