Finding the Fourth Proportional to 75,696.21, 113,557.68 and 31,298.10
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Solution
The fourth proportional to 75,696.21, 113,557.68 and 31,298.10 is: 46,952.68
Step by Step Solution
- Step 1: Write the proportion equation
75,696.21 : 113,557.68 = 31,298.10 : x - Step 2: Convert to fraction form
75,696.21/113,557.68 = 31,298.10/x - Step 3: Cross multiply
75,696.21x = 113,557.68 × 31,298.10 - Step 4: Simplify right side
75,696.21x = 3,554,139,624.41 - Step 5: Solve for x
x = 3,554,139,624.41/75,696.21 - Step 6: Final answer
x = 46,952.68
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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.