Finding the Fourth Proportional to 81,774.24, 112,816.48 and 45,956.08
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Solution
The fourth proportional to 81,774.24, 112,816.48 and 45,956.08 is: 63,401.42
Step by Step Solution
- Step 1: Write the proportion equation
81,774.24 : 112,816.48 = 45,956.08 : x - Step 2: Convert to fraction form
81,774.24/112,816.48 = 45,956.08/x - Step 3: Cross multiply
81,774.24x = 112,816.48 × 45,956.08 - Step 4: Simplify right side
81,774.24x = 5,184,603,180.20 - Step 5: Solve for x
x = 5,184,603,180.20/81,774.24 - Step 6: Final answer
x = 63,401.42
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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.