Finding the Fourth Proportional to 83,895.36, 115,778.16 and 48,092.28
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Solution
The fourth proportional to 83,895.36, 115,778.16 and 48,092.28 is: 66,368.82
Step by Step Solution
- Step 1: Write the proportion equation
83,895.36 : 115,778.16 = 48,092.28 : x - Step 2: Convert to fraction form
83,895.36/115,778.16 = 48,092.28/x - Step 3: Cross multiply
83,895.36x = 115,778.16 × 48,092.28 - Step 4: Simplify right side
83,895.36x = 5,568,035,688.60 - Step 5: Solve for x
x = 5,568,035,688.60/83,895.36 - Step 6: Final answer
x = 66,368.82
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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.