Finding the Fourth Proportional to 74,621.30, 102,976.73 and 40,629.70
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Solution
The fourth proportional to 74,621.30, 102,976.73 and 40,629.70 is: 56,068.62
Step by Step Solution
- Step 1: Write the proportion equation
74,621.30 : 102,976.73 = 40,629.70 : x - Step 2: Convert to fraction form
74,621.30/102,976.73 = 40,629.70/x - Step 3: Cross multiply
74,621.30x = 102,976.73 × 40,629.70 - Step 4: Simplify right side
74,621.30x = 4,183,913,646.88 - Step 5: Solve for x
x = 4,183,913,646.88/74,621.30 - Step 6: Final answer
x = 56,068.62
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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.