Finding the Fourth Proportional to 84,987.36, 117,283.68 and 47,262.96
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Solution
The fourth proportional to 84,987.36, 117,283.68 and 47,262.96 is: 65,223.51
Step by Step Solution
- Step 1: Write the proportion equation
84,987.36 : 117,283.68 = 47,262.96 : x - Step 2: Convert to fraction form
84,987.36/117,283.68 = 47,262.96/x - Step 3: Cross multiply
84,987.36x = 117,283.68 × 47,262.96 - Step 4: Simplify right side
84,987.36x = 5,543,173,876.49 - Step 5: Solve for x
x = 5,543,173,876.49/84,987.36 - Step 6: Final answer
x = 65,223.51
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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.