Finding the Fourth Proportional to 75,603.40, 113,405.10 and 51,983.80
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Solution
The fourth proportional to 75,603.40, 113,405.10 and 51,983.80 is: 77,975.70
Step by Step Solution
- Step 1: Write the proportion equation
75,603.40 : 113,405.10 = 51,983.80 : x - Step 2: Convert to fraction form
75,603.40/113,405.10 = 51,983.80/x - Step 3: Cross multiply
75,603.40x = 113,405.10 × 51,983.80 - Step 4: Simplify right side
75,603.40x = 5,895,228,037.38 - Step 5: Solve for x
x = 5,895,228,037.38/75,603.40 - Step 6: Final answer
x = 77,975.70
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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.