Finding the Fourth Proportional to 86,130.84, 118,858.36 and 47,888.42
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Solution
The fourth proportional to 86,130.84, 118,858.36 and 47,888.42 is: 66,084.80
Step by Step Solution
- Step 1: Write the proportion equation
86,130.84 : 118,858.36 = 47,888.42 : x - Step 2: Convert to fraction form
86,130.84/118,858.36 = 47,888.42/x - Step 3: Cross multiply
86,130.84x = 118,858.36 × 47,888.42 - Step 4: Simplify right side
86,130.84x = 5,691,939,064.19 - Step 5: Solve for x
x = 5,691,939,064.19/86,130.84 - Step 6: Final answer
x = 66,084.80
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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.