Finding the Fourth Proportional to 81,835.84, 122,756.40 and 22,672.08
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Solution
The fourth proportional to 81,835.84, 122,756.40 and 22,672.08 is: 34,008.85
Step by Step Solution
- Step 1: Write the proportion equation
81,835.84 : 122,756.40 = 22,672.08 : x - Step 2: Convert to fraction form
81,835.84/122,756.40 = 22,672.08/x - Step 3: Cross multiply
81,835.84x = 122,756.40 × 22,672.08 - Step 4: Simplify right side
81,835.84x = 2,783,142,921.31 - Step 5: Solve for x
x = 2,783,142,921.31/81,835.84 - Step 6: Final answer
x = 34,008.85
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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.