Finding the Fourth Proportional to 74,012.42, 102,140.88 and 43,815.08
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Solution
The fourth proportional to 74,012.42, 102,140.88 and 43,815.08 is: 60,467.02
Step by Step Solution
- Step 1: Write the proportion equation
74,012.42 : 102,140.88 = 43,815.08 : x - Step 2: Convert to fraction form
74,012.42/102,140.88 = 43,815.08/x - Step 3: Cross multiply
74,012.42x = 102,140.88 × 43,815.08 - Step 4: Simplify right side
74,012.42x = 4,475,310,828.47 - Step 5: Solve for x
x = 4,475,310,828.47/74,012.42 - Step 6: Final answer
x = 60,467.02
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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.