Finding the Fourth Proportional to 75,861.36, 113,215.19 and 67,454.01
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Solution
The fourth proportional to 75,861.36, 113,215.19 and 67,454.01 is: 100,668.09
Step by Step Solution
- Step 1: Write the proportion equation
75,861.36 : 113,215.19 = 67,454.01 : x - Step 2: Convert to fraction form
75,861.36/113,215.19 = 67,454.01/x - Step 3: Cross multiply
75,861.36x = 113,215.19 × 67,454.01 - Step 4: Simplify right side
75,861.36x = 7,636,818,558.41 - Step 5: Solve for x
x = 7,636,818,558.41/75,861.36 - Step 6: Final answer
x = 100,668.09
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.