Finding the Fourth Proportional to 75,030.99, 112,546.49 and 30,657.70
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Solution
The fourth proportional to 75,030.99, 112,546.49 and 30,657.70 is: 45,986.55
Step by Step Solution
- Step 1: Write the proportion equation
75,030.99 : 112,546.49 = 30,657.70 : x - Step 2: Convert to fraction form
75,030.99/112,546.49 = 30,657.70/x - Step 3: Cross multiply
75,030.99x = 112,546.49 × 30,657.70 - Step 4: Simplify right side
75,030.99x = 3,450,416,373.18 - Step 5: Solve for x
x = 3,450,416,373.18/75,030.99 - Step 6: Final answer
x = 45,986.55
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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.