Finding the Fourth Proportional to 86,947.30, 130,357.14 and 27,748.84
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Solution
The fourth proportional to 86,947.30, 130,357.14 and 27,748.84 is: 41,602.90
Step by Step Solution
- Step 1: Write the proportion equation
86,947.30 : 130,357.14 = 27,748.84 : x - Step 2: Convert to fraction form
86,947.30/130,357.14 = 27,748.84/x - Step 3: Cross multiply
86,947.30x = 130,357.14 × 27,748.84 - Step 4: Simplify right side
86,947.30x = 3,617,259,420.72 - Step 5: Solve for x
x = 3,617,259,420.72/86,947.30 - Step 6: Final answer
x = 41,602.90
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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.