Finding the Fourth Proportional to 83,560.48, 115,318.56 and 55,216.96
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Solution
The fourth proportional to 83,560.48, 115,318.56 and 55,216.96 is: 76,202.77
Step by Step Solution
- Step 1: Write the proportion equation
83,560.48 : 115,318.56 = 55,216.96 : x - Step 2: Convert to fraction form
83,560.48/115,318.56 = 55,216.96/x - Step 3: Cross multiply
83,560.48x = 115,318.56 × 55,216.96 - Step 4: Simplify right side
83,560.48x = 6,367,540,314.78 - Step 5: Solve for x
x = 6,367,540,314.78/83,560.48 - Step 6: Final answer
x = 76,202.77
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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.