Finding the Fourth Proportional to 83,579.38, 115,347.84 and 47,774.56
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Solution
The fourth proportional to 83,579.38, 115,347.84 and 47,774.56 is: 65,933.63
Step by Step Solution
- Step 1: Write the proportion equation
83,579.38 : 115,347.84 = 47,774.56 : x - Step 2: Convert to fraction form
83,579.38/115,347.84 = 47,774.56/x - Step 3: Cross multiply
83,579.38x = 115,347.84 × 47,774.56 - Step 4: Simplify right side
83,579.38x = 5,510,692,302.95 - Step 5: Solve for x
x = 5,510,692,302.95/83,579.38 - Step 6: Final answer
x = 65,933.63
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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.