Finding the Fourth Proportional to 87,653.99, 120,955.21 and 48,889.42
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Solution
The fourth proportional to 87,653.99, 120,955.21 and 48,889.42 is: 67,463.32
Step by Step Solution
- Step 1: Write the proportion equation
87,653.99 : 120,955.21 = 48,889.42 : x - Step 2: Convert to fraction form
87,653.99/120,955.21 = 48,889.42/x - Step 3: Cross multiply
87,653.99x = 120,955.21 × 48,889.42 - Step 4: Simplify right side
87,653.99x = 5,913,429,638.27 - Step 5: Solve for x
x = 5,913,429,638.27/87,653.99 - Step 6: Final answer
x = 67,463.32
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1.5x scale
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.