Finding the Fourth Proportional to 86,037.68, 118,728.14 and 47,799.68
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Solution
The fourth proportional to 86,037.68, 118,728.14 and 47,799.68 is: 65,961.42
Step by Step Solution
- Step 1: Write the proportion equation
86,037.68 : 118,728.14 = 47,799.68 : x - Step 2: Convert to fraction form
86,037.68/118,728.14 = 47,799.68/x - Step 3: Cross multiply
86,037.68x = 118,728.14 × 47,799.68 - Step 4: Simplify right side
86,037.68x = 5,675,167,515.31 - Step 5: Solve for x
x = 5,675,167,515.31/86,037.68 - Step 6: Final answer
x = 65,961.42
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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.