Finding the Fourth Proportional to 84,955.88, 117,239.25 and 47,230.13
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Solution
The fourth proportional to 84,955.88, 117,239.25 and 47,230.13 is: 65,177.65
Step by Step Solution
- Step 1: Write the proportion equation
84,955.88 : 117,239.25 = 47,230.13 : x - Step 2: Convert to fraction form
84,955.88/117,239.25 = 47,230.13/x - Step 3: Cross multiply
84,955.88x = 117,239.25 × 47,230.13 - Step 4: Simplify right side
84,955.88x = 5,537,224,432.41 - Step 5: Solve for x
x = 5,537,224,432.41/84,955.88 - Step 6: Final answer
x = 65,177.65
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1.5x scale
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.