Finding the Fourth Proportional to 72,948.68, 109,421.92 and 44,493.99
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Solution
The fourth proportional to 72,948.68, 109,421.92 and 44,493.99 is: 66,740.31
Step by Step Solution
- Step 1: Write the proportion equation
72,948.68 : 109,421.92 = 44,493.99 : x - Step 2: Convert to fraction form
72,948.68/109,421.92 = 44,493.99/x - Step 3: Cross multiply
72,948.68x = 109,421.92 × 44,493.99 - Step 4: Simplify right side
72,948.68x = 4,868,617,459.55 - Step 5: Solve for x
x = 4,868,617,459.55/72,948.68 - Step 6: Final answer
x = 66,740.31
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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.