Finding the Fourth Proportional to 74,252.14, 102,430.55 and 53,043.71
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Solution
The fourth proportional to 74,252.14, 102,430.55 and 53,043.71 is: 73,173.59
Step by Step Solution
- Step 1: Write the proportion equation
74,252.14 : 102,430.55 = 53,043.71 : x - Step 2: Convert to fraction form
74,252.14/102,430.55 = 53,043.71/x - Step 3: Cross multiply
74,252.14x = 102,430.55 × 53,043.71 - Step 4: Simplify right side
74,252.14x = 5,433,295,611.97 - Step 5: Solve for x
x = 5,433,295,611.97/74,252.14 - Step 6: Final answer
x = 73,173.59
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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.