Finding the Fourth Proportional to 74,531.40, 102,852.34 and 40,539.17
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Solution
The fourth proportional to 74,531.40, 102,852.34 and 40,539.17 is: 55,943.52
Step by Step Solution
- Step 1: Write the proportion equation
74,531.40 : 102,852.34 = 40,539.17 : x - Step 2: Convert to fraction form
74,531.40/102,852.34 = 40,539.17/x - Step 3: Cross multiply
74,531.40x = 102,852.34 × 40,539.17 - Step 4: Simplify right side
74,531.40x = 4,169,548,496.16 - Step 5: Solve for x
x = 4,169,548,496.16/74,531.40 - Step 6: Final answer
x = 55,943.52
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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.