Finding the Fourth Proportional to 86,788.19, 130,146.75 and 27,607.97
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Solution
The fourth proportional to 86,788.19, 130,146.75 and 27,607.97 is: 41,400.65
Step by Step Solution
- Step 1: Write the proportion equation
86,788.19 : 130,146.75 = 27,607.97 : x - Step 2: Convert to fraction form
86,788.19/130,146.75 = 27,607.97/x - Step 3: Cross multiply
86,788.19x = 130,146.75 × 27,607.97 - Step 4: Simplify right side
86,788.19x = 3,593,087,894.96 - Step 5: Solve for x
x = 3,593,087,894.96/86,788.19 - Step 6: Final answer
x = 41,400.65
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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.