Finding the Fourth Proportional to 80,691.70, 121,037.55 and 62,007.70
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Solution
The fourth proportional to 80,691.70, 121,037.55 and 62,007.70 is: 93,011.55
Step by Step Solution
- Step 1: Write the proportion equation
80,691.70 : 121,037.55 = 62,007.70 : x - Step 2: Convert to fraction form
80,691.70/121,037.55 = 62,007.70/x - Step 3: Cross multiply
80,691.70x = 121,037.55 × 62,007.70 - Step 4: Simplify right side
80,691.70x = 7,505,260,089.14 - Step 5: Solve for x
x = 7,505,260,089.14/80,691.70 - Step 6: Final answer
x = 93,011.55
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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.