Finding the Fourth Proportional to 86,480.21, 129,709.58 and 23,305.28
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Solution
The fourth proportional to 86,480.21, 129,709.58 and 23,305.28 is: 34,955.02
Step by Step Solution
- Step 1: Write the proportion equation
86,480.21 : 129,709.58 = 23,305.28 : x - Step 2: Convert to fraction form
86,480.21/129,709.58 = 23,305.28/x - Step 3: Cross multiply
86,480.21x = 129,709.58 × 23,305.28 - Step 4: Simplify right side
86,480.21x = 3,022,917,432.03 - Step 5: Solve for x
x = 3,022,917,432.03/86,480.21 - Step 6: Final answer
x = 34,955.02
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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.