Finding the Fourth Proportional to 74,366.81, 102,623.30 and 40,374.53
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Solution
The fourth proportional to 74,366.81, 102,623.30 and 40,374.53 is: 55,715.28
Step by Step Solution
- Step 1: Write the proportion equation
74,366.81 : 102,623.30 = 40,374.53 : x - Step 2: Convert to fraction form
74,366.81/102,623.30 = 40,374.53/x - Step 3: Cross multiply
74,366.81x = 102,623.30 × 40,374.53 - Step 4: Simplify right side
74,366.81x = 4,143,367,264.28 - Step 5: Solve for x
x = 4,143,367,264.28/74,366.81 - Step 6: Final answer
x = 55,715.28
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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.