Finding the Fourth Proportional to 86,992.40, 130,501.55 and 40,250.00
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Solution
The fourth proportional to 86,992.40, 130,501.55 and 40,250.00 is: 60,380.99
Step by Step Solution
- Step 1: Write the proportion equation
86,992.40 : 130,501.55 = 40,250.00 : x - Step 2: Convert to fraction form
86,992.40/130,501.55 = 40,250.00/x - Step 3: Cross multiply
86,992.40x = 130,501.55 × 40,250.00 - Step 4: Simplify right side
86,992.40x = 5,252,686,835.62 - Step 5: Solve for x
x = 5,252,686,835.62/86,992.40 - Step 6: Final answer
x = 60,380.99
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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.