Finding the Fourth Proportional to 90,990.93, 125,562.36 and 50,153.70
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Solution
The fourth proportional to 90,990.93, 125,562.36 and 50,153.70 is: 69,209.28
Step by Step Solution
- Step 1: Write the proportion equation
90,990.93 : 125,562.36 = 50,153.70 : x - Step 2: Convert to fraction form
90,990.93/125,562.36 = 50,153.70/x - Step 3: Cross multiply
90,990.93x = 125,562.36 × 50,153.70 - Step 4: Simplify right side
90,990.93x = 6,297,416,934.73 - Step 5: Solve for x
x = 6,297,416,934.73/90,990.93 - Step 6: Final answer
x = 69,209.28
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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.