Finding the Fourth Proportional to 86,871.14, 130,331.38 and 44,782.08
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Solution
The fourth proportional to 86,871.14, 130,331.38 and 44,782.08 is: 67,185.84
Step by Step Solution
- Step 1: Write the proportion equation
86,871.14 : 130,331.38 = 44,782.08 : x - Step 2: Convert to fraction form
86,871.14/130,331.38 = 44,782.08/x - Step 3: Cross multiply
86,871.14x = 130,331.38 × 44,782.08 - Step 4: Simplify right side
86,871.14x = 5,836,510,285.67 - Step 5: Solve for x
x = 5,836,510,285.67/86,871.14 - Step 6: Final answer
x = 67,185.84
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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.