Finding the Fourth Proportional to 81,935.40, 122,903.18 and 22,771.08
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Solution
The fourth proportional to 81,935.40, 122,903.18 and 22,771.08 is: 34,156.64
Step by Step Solution
- Step 1: Write the proportion equation
81,935.40 : 122,903.18 = 22,771.08 : x - Step 2: Convert to fraction form
81,935.40/122,903.18 = 22,771.08/x - Step 3: Cross multiply
81,935.40x = 122,903.18 × 22,771.08 - Step 4: Simplify right side
81,935.40x = 2,798,638,144.03 - Step 5: Solve for x
x = 2,798,638,144.03/81,935.40 - Step 6: Final answer
x = 34,156.64
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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.