Finding the Fourth Proportional to 83,787.99, 125,741.97 and 30,479.88
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Solution
The fourth proportional to 83,787.99, 125,741.97 and 30,479.88 is: 45,741.64
Step by Step Solution
- Step 1: Write the proportion equation
83,787.99 : 125,741.97 = 30,479.88 : x - Step 2: Convert to fraction form
83,787.99/125,741.97 = 30,479.88/x - Step 3: Cross multiply
83,787.99x = 125,741.97 × 30,479.88 - Step 4: Simplify right side
83,787.99x = 3,832,600,156.56 - Step 5: Solve for x
x = 3,832,600,156.56/83,787.99 - Step 6: Final answer
x = 45,741.64
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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.