Finding the Fourth Proportional to 74,302.13, 102,536.92 and 42,471.71
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Solution
The fourth proportional to 74,302.13, 102,536.92 and 42,471.71 is: 58,610.95
Step by Step Solution
- Step 1: Write the proportion equation
74,302.13 : 102,536.92 = 42,471.71 : x - Step 2: Convert to fraction form
74,302.13/102,536.92 = 42,471.71/x - Step 3: Cross multiply
74,302.13x = 102,536.92 × 42,471.71 - Step 4: Simplify right side
74,302.13x = 4,354,918,180.37 - Step 5: Solve for x
x = 4,354,918,180.37/74,302.13 - Step 6: Final answer
x = 58,610.95
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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.