Finding the Fourth Proportional to 74,762.79, 103,171.35 and 40,771.54
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Solution
The fourth proportional to 74,762.79, 103,171.35 and 40,771.54 is: 56,264.02
Step by Step Solution
- Step 1: Write the proportion equation
74,762.79 : 103,171.35 = 40,771.54 : x - Step 2: Convert to fraction form
74,762.79/103,171.35 = 40,771.54/x - Step 3: Cross multiply
74,762.79x = 103,171.35 × 40,771.54 - Step 4: Simplify right side
74,762.79x = 4,206,454,823.38 - Step 5: Solve for x
x = 4,206,454,823.38/74,762.79 - Step 6: Final answer
x = 56,264.02
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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.