Finding the Fourth Proportional to 83,995.42, 115,911.68 and 48,183.14
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Solution
The fourth proportional to 83,995.42, 115,911.68 and 48,183.14 is: 66,491.59
Step by Step Solution
- Step 1: Write the proportion equation
83,995.42 : 115,911.68 = 48,183.14 : x - Step 2: Convert to fraction form
83,995.42/115,911.68 = 48,183.14/x - Step 3: Cross multiply
83,995.42x = 115,911.68 × 48,183.14 - Step 4: Simplify right side
83,995.42x = 5,584,988,705.08 - Step 5: Solve for x
x = 5,584,988,705.08/83,995.42 - Step 6: Final answer
x = 66,491.59
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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.