Finding the Fourth Proportional to 74,119.44, 102,284.12 and 40,127.06
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Solution
The fourth proportional to 74,119.44, 102,284.12 and 40,127.06 is: 55,374.95
Step by Step Solution
- Step 1: Write the proportion equation
74,119.44 : 102,284.12 = 40,127.06 : x - Step 2: Convert to fraction form
74,119.44/102,284.12 = 40,127.06/x - Step 3: Cross multiply
74,119.44x = 102,284.12 × 40,127.06 - Step 4: Simplify right side
74,119.44x = 4,104,360,308.23 - Step 5: Solve for x
x = 4,104,360,308.23/74,119.44 - Step 6: Final answer
x = 55,374.95
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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.