Finding the Fourth Proportional to 81,992.84, 122,989.35 and 22,828.64
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Solution
The fourth proportional to 81,992.84, 122,989.35 and 22,828.64 is: 34,242.99
Step by Step Solution
- Step 1: Write the proportion equation
81,992.84 : 122,989.35 = 22,828.64 : x - Step 2: Convert to fraction form
81,992.84/122,989.35 = 22,828.64/x - Step 3: Cross multiply
81,992.84x = 122,989.35 × 22,828.64 - Step 4: Simplify right side
81,992.84x = 2,807,679,594.98 - Step 5: Solve for x
x = 2,807,679,594.98/81,992.84 - Step 6: Final answer
x = 34,242.99
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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.