Finding the Fourth Proportional to 115,257.60, 172,909.89 and 48,697.74
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Solution
The fourth proportional to 115,257.60, 172,909.89 and 48,697.74 is: 73,056.53
Step by Step Solution
- Step 1: Write the proportion equation
115,257.60 : 172,909.89 = 48,697.74 : x - Step 2: Convert to fraction form
115,257.60/172,909.89 = 48,697.74/x - Step 3: Cross multiply
115,257.60x = 172,909.89 × 48,697.74 - Step 4: Simplify right side
115,257.60x = 8,420,320,866.65 - Step 5: Solve for x
x = 8,420,320,866.65/115,257.60 - Step 6: Final answer
x = 73,056.53
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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.