Finding the Fourth Proportional to 84,988.12, 117,281.94 and 47,261.56
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Solution
The fourth proportional to 84,988.12, 117,281.94 and 47,261.56 is: 65,220.03
Step by Step Solution
- Step 1: Write the proportion equation
84,988.12 : 117,281.94 = 47,261.56 : x - Step 2: Convert to fraction form
84,988.12/117,281.94 = 47,261.56/x - Step 3: Cross multiply
84,988.12x = 117,281.94 × 47,261.56 - Step 4: Simplify right side
84,988.12x = 5,542,927,444.23 - Step 5: Solve for x
x = 5,542,927,444.23/84,988.12 - Step 6: Final answer
x = 65,220.03
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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.