Finding the Fourth Proportional to 74,359.34, 102,612.37 and 40,367.06
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Solution
The fourth proportional to 74,359.34, 102,612.37 and 40,367.06 is: 55,704.63
Step by Step Solution
- Step 1: Write the proportion equation
74,359.34 : 102,612.37 = 40,367.06 : x - Step 2: Convert to fraction form
74,359.34/102,612.37 = 40,367.06/x - Step 3: Cross multiply
74,359.34x = 102,612.37 × 40,367.06 - Step 4: Simplify right side
74,359.34x = 4,142,159,696.53 - Step 5: Solve for x
x = 4,142,159,696.53/74,359.34 - Step 6: Final answer
x = 55,704.63
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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.