Finding the Fourth Proportional to 74,616.57, 102,970.53 and 40,626.99
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Solution
The fourth proportional to 74,616.57, 102,970.53 and 40,626.99 is: 56,065.06
Step by Step Solution
- Step 1: Write the proportion equation
74,616.57 : 102,970.53 = 40,626.99 : x - Step 2: Convert to fraction form
74,616.57/102,970.53 = 40,626.99/x - Step 3: Cross multiply
74,616.57x = 102,970.53 × 40,626.99 - Step 4: Simplify right side
74,616.57x = 4,183,382,692.60 - Step 5: Solve for x
x = 4,183,382,692.60/74,616.57 - Step 6: Final answer
x = 56,065.06
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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.