Finding the Fourth Proportional to 87,329.53, 120,479.75 and 55,053.53
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Solution
The fourth proportional to 87,329.53, 120,479.75 and 55,053.53 is: 75,951.80
Step by Step Solution
- Step 1: Write the proportion equation
87,329.53 : 120,479.75 = 55,053.53 : x - Step 2: Convert to fraction form
87,329.53/120,479.75 = 55,053.53/x - Step 3: Cross multiply
87,329.53x = 120,479.75 × 55,053.53 - Step 4: Simplify right side
87,329.53x = 6,632,834,928.62 - Step 5: Solve for x
x = 6,632,834,928.62/87,329.53 - Step 6: Final answer
x = 75,951.80
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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.