Finding the Fourth Proportional to 79,562.45, 109,747.99 and 47,285.75
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Solution
The fourth proportional to 79,562.45, 109,747.99 and 47,285.75 is: 65,225.69
Step by Step Solution
- Step 1: Write the proportion equation
79,562.45 : 109,747.99 = 47,285.75 : x - Step 2: Convert to fraction form
79,562.45/109,747.99 = 47,285.75/x - Step 3: Cross multiply
79,562.45x = 109,747.99 × 47,285.75 - Step 4: Simplify right side
79,562.45x = 5,189,515,909.96 - Step 5: Solve for x
x = 5,189,515,909.96/79,562.45 - Step 6: Final answer
x = 65,225.69
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.