Finding the Fourth Proportional to 81,783.84, 122,653.08 and 22,614.96
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Solution
The fourth proportional to 81,783.84, 122,653.08 and 22,614.96 is: 33,916.17
Step by Step Solution
- Step 1: Write the proportion equation
81,783.84 : 122,653.08 = 22,614.96 : x - Step 2: Convert to fraction form
81,783.84/122,653.08 = 22,614.96/x - Step 3: Cross multiply
81,783.84x = 122,653.08 × 22,614.96 - Step 4: Simplify right side
81,783.84x = 2,773,794,498.08 - Step 5: Solve for x
x = 2,773,794,498.08/81,783.84 - Step 6: Final answer
x = 33,916.17
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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.