Finding the Fourth Proportional to 74,522.08, 102,842.40 and 40,532.68
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Solution
The fourth proportional to 74,522.08, 102,842.40 and 40,532.68 is: 55,936.15
Step by Step Solution
- Step 1: Write the proportion equation
74,522.08 : 102,842.40 = 40,532.68 : x - Step 2: Convert to fraction form
74,522.08/102,842.40 = 40,532.68/x - Step 3: Cross multiply
74,522.08x = 102,842.40 × 40,532.68 - Step 4: Simplify right side
74,522.08x = 4,168,478,089.63 - Step 5: Solve for x
x = 4,168,478,089.63/74,522.08 - Step 6: Final answer
x = 55,936.15
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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.