Finding the Fourth Proportional to 74,073.84, 102,224.34 and 40,539.84
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Solution
The fourth proportional to 74,073.84, 102,224.34 and 40,539.84 is: 55,946.32
Step by Step Solution
- Step 1: Write the proportion equation
74,073.84 : 102,224.34 = 40,539.84 : x - Step 2: Convert to fraction form
74,073.84/102,224.34 = 40,539.84/x - Step 3: Cross multiply
74,073.84x = 102,224.34 × 40,539.84 - Step 4: Simplify right side
74,073.84x = 4,144,158,387.71 - Step 5: Solve for x
x = 4,144,158,387.71/74,073.84 - Step 6: Final answer
x = 55,946.32
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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.