Finding the Fourth Proportional to 74,802.07, 112,239.56 and 30,459.43
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Solution
The fourth proportional to 74,802.07, 112,239.56 and 30,459.43 is: 45,703.99
Step by Step Solution
- Step 1: Write the proportion equation
74,802.07 : 112,239.56 = 30,459.43 : x - Step 2: Convert to fraction form
74,802.07/112,239.56 = 30,459.43/x - Step 3: Cross multiply
74,802.07x = 112,239.56 × 30,459.43 - Step 4: Simplify right side
74,802.07x = 3,418,753,021.05 - Step 5: Solve for x
x = 3,418,753,021.05/74,802.07 - Step 6: Final answer
x = 45,703.99
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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.