Finding the Fourth Proportional to 81,304.35, 121,956.52 and 53,595.87
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Solution
The fourth proportional to 81,304.35, 121,956.52 and 53,595.87 is: 80,393.80
Step by Step Solution
- Step 1: Write the proportion equation
81,304.35 : 121,956.52 = 53,595.87 : x - Step 2: Convert to fraction form
81,304.35/121,956.52 = 53,595.87/x - Step 3: Cross multiply
81,304.35x = 121,956.52 × 53,595.87 - Step 4: Simplify right side
81,304.35x = 6,536,365,401.23 - Step 5: Solve for x
x = 6,536,365,401.23/81,304.35 - Step 6: Final answer
x = 80,393.80
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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.