Finding the Fourth Proportional to 79,602.91, 109,851.21 and 43,792.99
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Solution
The fourth proportional to 79,602.91, 109,851.21 and 43,792.99 is: 60,433.88
Step by Step Solution
- Step 1: Write the proportion equation
79,602.91 : 109,851.21 = 43,792.99 : x - Step 2: Convert to fraction form
79,602.91/109,851.21 = 43,792.99/x - Step 3: Cross multiply
79,602.91x = 109,851.21 × 43,792.99 - Step 4: Simplify right side
79,602.91x = 4,810,712,941.02 - Step 5: Solve for x
x = 4,810,712,941.02/79,602.91 - Step 6: Final answer
x = 60,433.88
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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.