Finding the Fourth Proportional to 86,984.81, 120,097.52 and 54,328.98
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Solution
The fourth proportional to 86,984.81, 120,097.52 and 54,328.98 is: 75,010.52
Step by Step Solution
- Step 1: Write the proportion equation
86,984.81 : 120,097.52 = 54,328.98 : x - Step 2: Convert to fraction form
86,984.81/120,097.52 = 54,328.98/x - Step 3: Cross multiply
86,984.81x = 120,097.52 × 54,328.98 - Step 4: Simplify right side
86,984.81x = 6,524,775,762.13 - Step 5: Solve for x
x = 6,524,775,762.13/86,984.81 - Step 6: Final answer
x = 75,010.52
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.