Finding the Fourth Proportional to 74,712.99, 103,100.92 and 40,720.75
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Solution
The fourth proportional to 74,712.99, 103,100.92 and 40,720.75 is: 56,193.00
Step by Step Solution
- Step 1: Write the proportion equation
74,712.99 : 103,100.92 = 40,720.75 : x - Step 2: Convert to fraction form
74,712.99/103,100.92 = 40,720.75/x - Step 3: Cross multiply
74,712.99x = 103,100.92 × 40,720.75 - Step 4: Simplify right side
74,712.99x = 4,198,346,788.09 - Step 5: Solve for x
x = 4,198,346,788.09/74,712.99 - Step 6: Final answer
x = 56,193.00
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.