Finding the Fourth Proportional to 79,564.84, 109,799.76 and 43,757.08
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Solution
The fourth proportional to 79,564.84, 109,799.76 and 43,757.08 is: 60,384.92
Step by Step Solution
- Step 1: Write the proportion equation
79,564.84 : 109,799.76 = 43,757.08 : x - Step 2: Convert to fraction form
79,564.84/109,799.76 = 43,757.08/x - Step 3: Cross multiply
79,564.84x = 109,799.76 × 43,757.08 - Step 4: Simplify right side
79,564.84x = 4,804,516,882.30 - Step 5: Solve for x
x = 4,804,516,882.30/79,564.84 - Step 6: Final answer
x = 60,384.92
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.