Finding the Fourth Proportional to 74,929.19, 103,409.43 and 40,942.84
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Solution
The fourth proportional to 74,929.19, 103,409.43 and 40,942.84 is: 56,505.02
Step by Step Solution
- Step 1: Write the proportion equation
74,929.19 : 103,409.43 = 40,942.84 : x - Step 2: Convert to fraction form
74,929.19/103,409.43 = 40,942.84/x - Step 3: Cross multiply
74,929.19x = 103,409.43 × 40,942.84 - Step 4: Simplify right side
74,929.19x = 4,233,875,746.98 - Step 5: Solve for x
x = 4,233,875,746.98/74,929.19 - Step 6: Final answer
x = 56,505.02
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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.