Finding the Fourth Proportional to 74,287.84, 102,447.60 and 59,230.56
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Solution
The fourth proportional to 74,287.84, 102,447.60 and 59,230.56 is: 81,682.66
Step by Step Solution
- Step 1: Write the proportion equation
74,287.84 : 102,447.60 = 59,230.56 : x - Step 2: Convert to fraction form
74,287.84/102,447.60 = 59,230.56/x - Step 3: Cross multiply
74,287.84x = 102,447.60 × 59,230.56 - Step 4: Simplify right side
74,287.84x = 6,068,028,718.66 - Step 5: Solve for x
x = 6,068,028,718.66/74,287.84 - Step 6: Final answer
x = 81,682.66
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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.