Finding the Fourth Proportional to 83,437.20, 125,155.80 and 48,007.80
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Solution
The fourth proportional to 83,437.20, 125,155.80 and 48,007.80 is: 72,011.70
Step by Step Solution
- Step 1: Write the proportion equation
83,437.20 : 125,155.80 = 48,007.80 : x - Step 2: Convert to fraction form
83,437.20/125,155.80 = 48,007.80/x - Step 3: Cross multiply
83,437.20x = 125,155.80 × 48,007.80 - Step 4: Simplify right side
83,437.20x = 6,008,454,615.24 - Step 5: Solve for x
x = 6,008,454,615.24/83,437.20 - Step 6: Final answer
x = 72,011.70
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1.5x scale
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.