Finding the Fourth Proportional to 74,127.09, 102,294.12 and 40,135.29
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Solution
The fourth proportional to 74,127.09, 102,294.12 and 40,135.29 is: 55,386.02
Step by Step Solution
- Step 1: Write the proportion equation
74,127.09 : 102,294.12 = 40,135.29 : x - Step 2: Convert to fraction form
74,127.09/102,294.12 = 40,135.29/x - Step 3: Cross multiply
74,127.09x = 102,294.12 × 40,135.29 - Step 4: Simplify right side
74,127.09x = 4,105,604,171.49 - Step 5: Solve for x
x = 4,105,604,171.49/74,127.09 - Step 6: Final answer
x = 55,386.02
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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.