Finding the Fourth Proportional to 48,489.23, 72,733.95 and 13,428.99
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Solution
The fourth proportional to 48,489.23, 72,733.95 and 13,428.99 is: 20,143.51
Step by Step Solution
- Step 1: Write the proportion equation
48,489.23 : 72,733.95 = 13,428.99 : x - Step 2: Convert to fraction form
48,489.23/72,733.95 = 13,428.99/x - Step 3: Cross multiply
48,489.23x = 72,733.95 × 13,428.99 - Step 4: Simplify right side
48,489.23x = 976,743,487.21 - Step 5: Solve for x
x = 976,743,487.21/48,489.23 - Step 6: Final answer
x = 20,143.51
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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.