Finding the Fourth Proportional to 83,279.24, 124,886.30 and 27,105.70
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Solution
The fourth proportional to 83,279.24, 124,886.30 and 27,105.70 is: 40,647.95
Step by Step Solution
- Step 1: Write the proportion equation
83,279.24 : 124,886.30 = 27,105.70 : x - Step 2: Convert to fraction form
83,279.24/124,886.30 = 27,105.70/x - Step 3: Cross multiply
83,279.24x = 124,886.30 × 27,105.70 - Step 4: Simplify right side
83,279.24x = 3,385,130,581.91 - Step 5: Solve for x
x = 3,385,130,581.91/83,279.24 - Step 6: Final answer
x = 40,647.95
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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.