Finding the Fourth Proportional to 68,490.52, 102,768.36 and 47,462.92
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Solution
The fourth proportional to 68,490.52, 102,768.36 and 47,462.92 is: 71,216.95
Step by Step Solution
- Step 1: Write the proportion equation
68,490.52 : 102,768.36 = 47,462.92 : x - Step 2: Convert to fraction form
68,490.52/102,768.36 = 47,462.92/x - Step 3: Cross multiply
68,490.52x = 102,768.36 × 47,462.92 - Step 4: Simplify right side
68,490.52x = 4,877,685,698.05 - Step 5: Solve for x
x = 4,877,685,698.05/68,490.52 - Step 6: Final answer
x = 71,216.95
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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.