Finding the Fourth Proportional to 74,425.92, 102,708.95 and 40,435.08
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Solution
The fourth proportional to 74,425.92, 102,708.95 and 40,435.08 is: 55,801.05
Step by Step Solution
- Step 1: Write the proportion equation
74,425.92 : 102,708.95 = 40,435.08 : x - Step 2: Convert to fraction form
74,425.92/102,708.95 = 40,435.08/x - Step 3: Cross multiply
74,425.92x = 102,708.95 × 40,435.08 - Step 4: Simplify right side
74,425.92x = 4,153,044,407.79 - Step 5: Solve for x
x = 4,153,044,407.79/74,425.92 - Step 6: Final answer
x = 55,801.05
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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.