Finding the Fourth Proportional to 86,780.16, 130,153.92 and 27,616.48
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Solution
The fourth proportional to 86,780.16, 130,153.92 and 27,616.48 is: 41,419.53
Step by Step Solution
- Step 1: Write the proportion equation
86,780.16 : 130,153.92 = 27,616.48 : x - Step 2: Convert to fraction form
86,780.16/130,153.92 = 27,616.48/x - Step 3: Cross multiply
86,780.16x = 130,153.92 × 27,616.48 - Step 4: Simplify right side
86,780.16x = 3,594,393,128.60 - Step 5: Solve for x
x = 3,594,393,128.60/86,780.16 - Step 6: Final answer
x = 41,419.53
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.