Finding the Fourth Proportional to 74,929.96, 103,400.28 and 40,939.62
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Solution
The fourth proportional to 74,929.96, 103,400.28 and 40,939.62 is: 56,495.00
Step by Step Solution
- Step 1: Write the proportion equation
74,929.96 : 103,400.28 = 40,939.62 : x - Step 2: Convert to fraction form
74,929.96/103,400.28 = 40,939.62/x - Step 3: Cross multiply
74,929.96x = 103,400.28 × 40,939.62 - Step 4: Simplify right side
74,929.96x = 4,233,168,171.09 - Step 5: Solve for x
x = 4,233,168,171.09/74,929.96 - Step 6: Final answer
x = 56,495.00
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.