Finding the Fourth Proportional to 81,784.08, 122,676.12 and 22,619.79
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Solution
The fourth proportional to 81,784.08, 122,676.12 and 22,619.79 is: 33,929.69
Step by Step Solution
- Step 1: Write the proportion equation
81,784.08 : 122,676.12 = 22,619.79 : x - Step 2: Convert to fraction form
81,784.08/122,676.12 = 22,619.79/x - Step 3: Cross multiply
81,784.08x = 122,676.12 × 22,619.79 - Step 4: Simplify right side
81,784.08x = 2,774,908,072.41 - Step 5: Solve for x
x = 2,774,908,072.41/81,784.08 - Step 6: Final answer
x = 33,929.69
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1.5x scale
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.