Finding the Fourth Proportional to 79,048.08, 109,013.76 and 61,822.08
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Solution
The fourth proportional to 79,048.08, 109,013.76 and 61,822.08 is: 85,257.70
Step by Step Solution
- Step 1: Write the proportion equation
79,048.08 : 109,013.76 = 61,822.08 : x - Step 2: Convert to fraction form
79,048.08/109,013.76 = 61,822.08/x - Step 3: Cross multiply
79,048.08x = 109,013.76 × 61,822.08 - Step 4: Simplify right side
79,048.08x = 6,739,457,391.82 - Step 5: Solve for x
x = 6,739,457,391.82/79,048.08 - Step 6: Final answer
x = 85,257.70
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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.