Finding the Fourth Proportional to 74,611.84, 102,503.76 and 66,758.08
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Solution
The fourth proportional to 74,611.84, 102,503.76 and 66,758.08 is: 91,714.05
Step by Step Solution
- Step 1: Write the proportion equation
74,611.84 : 102,503.76 = 66,758.08 : x - Step 2: Convert to fraction form
74,611.84/102,503.76 = 66,758.08/x - Step 3: Cross multiply
74,611.84x = 102,503.76 × 66,758.08 - Step 4: Simplify right side
74,611.84x = 6,842,954,210.38 - Step 5: Solve for x
x = 6,842,954,210.38/74,611.84 - Step 6: Final answer
x = 91,714.05
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.