Finding the Fourth Proportional to 92,306.99, 138,720.20 and 54,873.75
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Solution
The fourth proportional to 92,306.99, 138,720.20 and 54,873.75 is: 82,465.02
Step by Step Solution
- Step 1: Write the proportion equation
92,306.99 : 138,720.20 = 54,873.75 : x - Step 2: Convert to fraction form
92,306.99/138,720.20 = 54,873.75/x - Step 3: Cross multiply
92,306.99x = 138,720.20 × 54,873.75 - Step 4: Simplify right side
92,306.99x = 7,612,097,820.58 - Step 5: Solve for x
x = 7,612,097,820.58/92,306.99 - Step 6: Final answer
x = 82,465.02
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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.