Finding the Fourth Proportional to 81,846.18, 112,937.63 and 51,620.09
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Solution
The fourth proportional to 81,846.18, 112,937.63 and 51,620.09 is: 71,229.35
Step by Step Solution
- Step 1: Write the proportion equation
81,846.18 : 112,937.63 = 51,620.09 : x - Step 2: Convert to fraction form
81,846.18/112,937.63 = 51,620.09/x - Step 3: Cross multiply
81,846.18x = 112,937.63 × 51,620.09 - Step 4: Simplify right side
81,846.18x = 5,829,849,802.20 - Step 5: Solve for x
x = 5,829,849,802.20/81,846.18 - Step 6: Final answer
x = 71,229.35
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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.