Finding the Fourth Proportional to 86,881.38, 130,319.35 and 27,720.58
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Solution
The fourth proportional to 86,881.38, 130,319.35 and 27,720.58 is: 41,580.00
Step by Step Solution
- Step 1: Write the proportion equation
86,881.38 : 130,319.35 = 27,720.58 : x - Step 2: Convert to fraction form
86,881.38/130,319.35 = 27,720.58/x - Step 3: Cross multiply
86,881.38x = 130,319.35 × 27,720.58 - Step 4: Simplify right side
86,881.38x = 3,612,527,967.22 - Step 5: Solve for x
x = 3,612,527,967.22/86,881.38 - Step 6: Final answer
x = 41,580.00
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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.