Finding the Fourth Proportional to 86,977.10, 130,473.84 and 27,798.71
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Solution
The fourth proportional to 86,977.10, 130,473.84 and 27,798.71 is: 41,700.68
Step by Step Solution
- Step 1: Write the proportion equation
86,977.10 : 130,473.84 = 27,798.71 : x - Step 2: Convert to fraction form
86,977.10/130,473.84 = 27,798.71/x - Step 3: Cross multiply
86,977.10x = 130,473.84 × 27,798.71 - Step 4: Simplify right side
86,977.10x = 3,627,004,440.75 - Step 5: Solve for x
x = 3,627,004,440.75/86,977.10 - Step 6: Final answer
x = 41,700.68
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1.5x scale
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.