Finding the Fourth Proportional to 86,157.36, 118,903.68 and 48,437.28
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Solution
The fourth proportional to 86,157.36, 118,903.68 and 48,437.28 is: 66,847.11
Step by Step Solution
- Step 1: Write the proportion equation
86,157.36 : 118,903.68 = 48,437.28 : x - Step 2: Convert to fraction form
86,157.36/118,903.68 = 48,437.28/x - Step 3: Cross multiply
86,157.36x = 118,903.68 × 48,437.28 - Step 4: Simplify right side
86,157.36x = 5,759,370,841.19 - Step 5: Solve for x
x = 5,759,370,841.19/86,157.36 - Step 6: Final answer
x = 66,847.11
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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.