Finding the Fourth Proportional to 86,807.80, 130,218.90 and 27,641.80
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Solution
The fourth proportional to 86,807.80, 130,218.90 and 27,641.80 is: 41,464.99
Step by Step Solution
- Step 1: Write the proportion equation
86,807.80 : 130,218.90 = 27,641.80 : x - Step 2: Convert to fraction form
86,807.80/130,218.90 = 27,641.80/x - Step 3: Cross multiply
86,807.80x = 130,218.90 × 27,641.80 - Step 4: Simplify right side
86,807.80x = 3,599,484,790.02 - Step 5: Solve for x
x = 3,599,484,790.02/86,807.80 - Step 6: Final answer
x = 41,464.99
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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.