Finding the Fourth Proportional to 86,698.39, 130,047.16 and 27,538.62
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Solution
The fourth proportional to 86,698.39, 130,047.16 and 27,538.62 is: 41,307.80
Step by Step Solution
- Step 1: Write the proportion equation
86,698.39 : 130,047.16 = 27,538.62 : x - Step 2: Convert to fraction form
86,698.39/130,047.16 = 27,538.62/x - Step 3: Cross multiply
86,698.39x = 130,047.16 × 27,538.62 - Step 4: Simplify right side
86,698.39x = 3,581,319,321.32 - Step 5: Solve for x
x = 3,581,319,321.32/86,698.39 - Step 6: Final answer
x = 41,307.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.